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What does your Rinnai fault code mean?

Pick the code showing on your remote, wall controller or indoor unit and see what it means, what commonly causes it, and what is safe to check yourself. This page covers 64 Rinnai fault codes for units sold in Australia, compiled from official Australian manufacturer and distributor documentation, the same references our own technicians carry.

Heads up: Rinnai uses the same code with different meanings on different product ranges, so check the model range shown next to the code.

Every Rinnai fault code at a glance

Some models show faults as a flashing-light pattern instead of a code; documented lamp patterns are listed alongside their codes.

Code What it means How serious Most likely cause What you can check yourself
E0 (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor)) The indoor unit has shut down because it detected the system drawing more electrical current than is safe. Fault – service needed Unstable or low mains supply voltage Turn the system off at the isolator or breaker for 5 minutes, then restart
E0 (Inverter slim four-way cassette systems (CIN070R, CIN100R, CIN120R, CIN140R indoor with DONSR series outdoor)) The indoor unit’s memory chip (EEPROM) has failed, so the unit cannot read its stored settings. Fault – service needed Memory chip failure on the indoor circuit board Turn the system off at the isolator or breaker for 5 minutes, then restart
E1 (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor)) The indoor room temperature sensor has failed or lost connection. Minor fault Temperature sensor open or short circuit Turn the system off at the isolator or breaker for 5 minutes, then restart
E1 (Inverter slim four-way cassette systems (CIN070R, CIN100R, CIN120R, CIN140R indoor with DONSR series outdoor)) The indoor and outdoor units have lost communication with each other. Fault – service needed Loose or damaged interconnecting cable between indoor and outdoor units Check the outdoor unit isolator switch is on
E2 (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor)) The outdoor coil temperature sensor has failed or lost connection. Minor fault Coil sensor open or short circuit Turn the system off at the isolator or breaker for 5 minutes, then restart
E3 (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor)) The indoor coil temperature sensor has failed or lost connection. Minor fault Coil sensor open or short circuit Turn the system off at the isolator or breaker for 5 minutes, then restart
E3 (Inverter slim four-way cassette systems (CIN070R, CIN100R, CIN120R, CIN140R indoor with DONSR series outdoor)) The indoor fan is not running at the speed the control board expects. Fault – service needed Fan jammed or obstructed Turn the system off at the isolator or breaker for 5 minutes, then restart
E4 (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor)) The indoor fan motor is not running properly or its speed signal is not reaching the control board. Fault – service needed Fan jammed or obstructed Turn the system off at the isolator or breaker for 5 minutes, then restart
E4 (Inverter slim four-way cassette systems (CIN070R, CIN100R, CIN120R, CIN140R indoor with DONSR series outdoor)) The indoor room temperature sensor has failed or lost connection. Minor fault Sensor open or short circuit Turn the system off at the isolator or breaker for 5 minutes, then restart
E5 (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor))also shown as 5E The indoor and outdoor units have lost communication with each other. Fault – service needed Loose or damaged interconnecting cable between indoor and outdoor units Check the outdoor unit isolator switch is on
E5 (Inverter slim four-way cassette systems (CIN070R, CIN100R, CIN120R, CIN140R indoor with DONSR series outdoor)) The evaporator coil temperature sensor has failed or lost connection. Minor fault Sensor open or short circuit Turn the system off at the isolator or breaker for 5 minutes, then restart
E8 (Inverter slim four-way cassette systems (CIN070R, CIN100R, CIN120R, CIN140R indoor with DONSR series outdoor), twin models only) The two indoor units of a twin system have lost communication with each other. Fault – service needed Loose or damaged cable between the twin indoor units Turn the system off at the isolator or breaker for 5 minutes, then restart
E9 (Inverter slim four-way cassette systems (CIN070R, CIN100R, CIN120R, CIN140R indoor with DONSR series outdoor), twin models only) A fault has occurred in the twin indoor unit configuration. Fault – service needed Twin unit wiring or addressing fault Turn the system off at the isolator or breaker for 5 minutes, then restart
EC (Inverter slim four-way cassette systems (CIN070R, CIN100R, CIN120R, CIN140R indoor with DONSR series outdoor)) The system has detected a possible refrigerant leak or a fault in its refrigerant leak detection system. Urgent – turn it off Refrigerant leak in the system Turn the system off at the isolator and stop using it
EE (Inverter slim four-way cassette systems (CIN070R, CIN100R, CIN120R, CIN140R indoor with DONSR series outdoor)) The condensate water level alarm has triggered or its float switch has failed, meaning drain water may not be clearing. Fault – service needed Blocked condensate drain Look for water dripping or staining around the ceiling cassette
Eb (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor)) The indoor unit’s memory chip (EEPROM) cannot be read, so the unit cannot load its settings. Fault – service needed Memory chip poor contact or failure Turn the system off at the isolator or breaker for 5 minutes, then restart
F0 (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor)) The outdoor fan motor is not running properly. Fault – service needed Outdoor fan jammed by leaves or debris Turn the system off at the isolator or breaker for 5 minutes, then restart
F0 (Inverter slim four-way cassette systems (CIN070R, CIN100R, CIN120R, CIN140R indoor with DONSR series outdoor)) The system has shut down to protect itself from working under overload. Fault – service needed Blocked or dirty outdoor coil Check nothing is covering or crowding the outdoor unit
F1 (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor)) The power module driving the compressor has shut the system down to protect itself. Fault – service needed Supply voltage too high or too low Turn the system off at the isolator or breaker for 5 minutes, then restart
F1 (Inverter slim four-way cassette systems (CIN070R, CIN100R, CIN120R, CIN140R indoor with DONSR series outdoor)) The outdoor air temperature sensor has failed or lost connection. Minor fault Sensor open or short circuit Turn the system off at the isolator or breaker for 5 minutes, then restart
F2 (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor)) The power factor correction (PFC) board has detected an electrical fault and shut the system down. Fault – service needed Supply voltage too high or too low Turn the system off at the isolator or breaker for 5 minutes, then restart
F2 (Inverter slim four-way cassette systems (CIN070R, CIN100R, CIN120R, CIN140R indoor with DONSR series outdoor)) The outdoor condenser pipe temperature sensor has failed or lost connection. Minor fault Sensor open or short circuit Turn the system off at the isolator or breaker for 5 minutes, then restart
F3 (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor)) The compressor failed to start or lost its normal rhythm while running. Fault – service needed Supply voltage problem Turn the system off at the isolator or breaker for 5 minutes, then restart
F3 (Inverter slim four-way cassette systems (CIN070R, CIN100R, CIN120R, CIN140R indoor with DONSR series outdoor)) The compressor discharge air temperature sensor has failed or lost connection. Minor fault Sensor open or short circuit Turn the system off at the isolator or breaker for 5 minutes, then restart
F4 (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor)) The compressor discharge (exhaust) temperature sensor has failed or lost connection. Minor fault Sensor open or short circuit Turn the system off at the isolator or breaker for 5 minutes, then restart
F4 (Inverter slim four-way cassette systems (CIN070R, CIN100R, CIN120R, CIN140R indoor with DONSR series outdoor)) The outdoor unit’s memory chip (EEPROM) has failed, so the unit cannot read its stored settings. Fault – service needed Memory chip failure on the outdoor circuit board Turn the system off at the isolator or breaker for 5 minutes, then restart
F5 (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor)) The compressor’s overheat protection switch has opened, usually because the compressor got too hot. Fault – service needed Compressor overheating from low refrigerant Turn the system off at the isolator or breaker for 5 minutes, then restart
F5 (Inverter slim four-way cassette systems (CIN070R, CIN100R, CIN120R, CIN140R indoor with DONSR series outdoor)) The outdoor fan is not running at the speed the control board expects. Fault – service needed Outdoor fan jammed by leaves or debris Look for leaves or rubbish caught around the outdoor unit and clear anything you can reach without opening it
F6 (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor)) The outdoor air temperature sensor has failed or lost connection. Minor fault Sensor open or short circuit Turn the system off at the isolator or breaker for 5 minutes, then restart
F6 (Inverter slim four-way cassette systems (CIN070R, CIN100R, CIN120R, CIN140R indoor with DONSR series outdoor)) The T2b coil outlet temperature sensor has failed or lost connection. Minor fault Sensor open or short circuit Turn the system off at the isolator or breaker for 5 minutes, then restart
F7 (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor)) The power supply voltage is outside the safe operating range, so the unit has shut down to protect itself. Fault – service needed Mains voltage too low or too high (outside roughly 135 to 275 volts) Check whether lights flicker or other appliances are playing up, which can point to a supply problem
F7 (Inverter slim four-way cassette systems (CIN070R, CIN100R, CIN120R, CIN140R indoor with DONSR series outdoor), auto-lifting panel models only) The auto-lifting panel has lost communication with the unit. Minor fault Loose or damaged panel cable Turn the system off at the isolator or breaker for 5 minutes, then restart
F8 (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor)) The outdoor unit’s main board and its inverter module board have lost communication. Fault – service needed Loose or damaged data cable between the two boards Turn the system off at the isolator or breaker for 5 minutes, then restart
F8 (Inverter slim four-way cassette systems (CIN070R, CIN100R, CIN120R, CIN140R indoor with DONSR series outdoor), auto-lifting panel models only) The auto-lifting panel mechanism has a fault. Minor fault Panel motor or suspension wire fault Check nothing is caught in or resting against the panel grille
F9 (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor)) The outdoor unit’s memory chip (EEPROM) cannot be read, so the unit cannot load its settings. Fault – service needed Memory chip poor contact or failure Turn the system off at the isolator or breaker for 5 minutes, then restart
F9 (Inverter slim four-way cassette systems (CIN070R, CIN100R, CIN120R, CIN140R indoor with DONSR series outdoor), auto-lifting panel models only) The auto-lifting panel is open and has not returned to its closed position. Minor fault Panel not fully raised after filter access Use the remote control’s panel button to raise the panel
FA (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor)) The refrigerant return temperature sensor has failed, or the four-way valve is not switching properly. Minor fault Return sensor open or short circuit Turn the system off at the isolator or breaker for 5 minutes, then restart
L0 (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor)) The outdoor unit’s internal DC voltage went outside safe limits, so the system shut down. This is a subdivided version of the F1 module protection fault. Fault – service needed Unstable or fluctuating mains supply voltage Check whether lights flicker or other appliances are playing up, which can point to a supply problem
L1 (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor)) The compressor drew more current through one of its windings than is safe, so the system shut down. This is a subdivided version of the F1 module protection fault. Fault – service needed Unstable mains supply voltage Turn the system off at the isolator or breaker for 5 minutes, then restart
L2 (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor)) The compressor lost its normal running rhythm (out of step), so the system shut down. This is a subdivided version of the F1 module protection fault. Fault – service needed High system pressure from a blocked outdoor coil Check nothing is covering or crowding the outdoor unit
L3 (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor)) One of the compressor’s electrical phases is missing or not connected, so the system shut down. This is a subdivided version of the F1 module protection fault. Fault – service needed Loose or damaged compressor wiring Turn the system off at the isolator or breaker for 5 minutes, then restart
L4 (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor)) The power module (IPM) that drives the compressor has failed or shut itself down. This is a subdivided version of the F1 module protection fault. Fault – service needed Power module failure on the outdoor controller Turn the system off at the isolator or breaker for 5 minutes, then restart
L5 (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor)) The power factor correction (PFC) circuit’s hardware protection detected too much current and shut the system down. This is a subdivided version of the F1 module protection fault. Fault – service needed Unstable mains supply voltage Check whether lights flicker or other appliances are playing up, which can point to a supply problem
L6 (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor)) The power factor correction (PFC) circuit’s software protection detected too much current and shut the system down. This is a subdivided version of the F1 module protection fault. Fault – service needed Unstable mains supply voltage Check whether lights flicker or other appliances are playing up, which can point to a supply problem
L7 (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor)) The circuit that measures electrical current on the outdoor controller is giving abnormal readings, so the system shut down. This is a subdivided version of the F1 module protection fault. Fault – service needed Outdoor unit controller fault Turn the system off at the isolator or breaker for 5 minutes, then restart
L8 (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor)) The outdoor controller’s current-sensing components are out of balance, so the system shut down. This is a subdivided version of the F1 module protection fault. Fault – service needed Outdoor unit controller fault Turn the system off at the isolator or breaker for 5 minutes, then restart
L9 (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor)) The temperature sensor on the outdoor unit’s inverter power module (IPM) has failed. This is a subdivided version of the F1 module protection fault. Minor fault Sensor open or short circuit Turn the system off at the isolator or breaker for 5 minutes, then restart
LA (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor)) The compressor failed to start. This is a subdivided version of the F1 module protection fault. Fault – service needed Unstable mains supply voltage Turn the system off at the isolator or breaker for 5 minutes, then restart
LC (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor)) The circuit that measures current in the outdoor unit’s power factor correction (PFC) stage is giving abnormal readings, so the system shut down. This is a subdivided version of the F1 module protection fault. Fault – service needed Outdoor unit controller fault Turn the system off at the isolator or breaker for 5 minutes, then restart
P0 (Inverter slim four-way cassette systems (CIN070R, CIN100R, CIN120R, CIN140R indoor with DONSR series outdoor)) The inverter power module has shut the system down to protect itself. Fault – service needed Power module overcurrent or overheating Turn the system off at the isolator or breaker for 5 minutes, then restart
P1 (Inverter slim four-way cassette systems (CIN070R, CIN100R, CIN120R, CIN140R indoor with DONSR series outdoor)) The power supply voltage is too high or too low, so the unit has shut down to protect itself. Fault – service needed Mains voltage fluctuations Check whether lights flicker or other appliances are playing up, which can point to a supply problem
P2 (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor)) The system has shut down because refrigerant pressure climbed too high. Fault – service needed Blocked or dirty outdoor coil Check nothing is covering or crowding the outdoor unit
P2 (Inverter slim four-way cassette systems (CIN070R, CIN100R, CIN120R, CIN140R indoor with DONSR series outdoor)) The top of the compressor got too hot, so the unit shut down to protect it. Fault – service needed Low refrigerant Check nothing is covering or crowding the outdoor unit
P3 (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor)) The system has detected it is very low on refrigerant and has shut down to protect the compressor. Fault – service needed Refrigerant leak Turn the system off at the isolator or breaker for 5 minutes, then restart
P3 (Inverter slim four-way cassette systems (CIN070R, CIN100R, CIN120R, CIN140R indoor with DONSR series outdoor)) The unit has stopped because the outdoor temperature is too low for safe operation. Minor fault Outdoor temperature below the unit’s operating range If it is very cold outside, wait for conditions to warm up and restart the unit
P4 (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor)) The outdoor coil got too hot in cooling mode, so the unit slowed down or stopped to protect the compressor. Fault – service needed Blocked or dirty outdoor coil Check nothing is covering or crowding the outdoor unit
P4 (Inverter slim four-way cassette systems (CIN070R, CIN100R, CIN120R, CIN140R indoor with DONSR series outdoor)) The inverter cannot drive the compressor properly. Fault – service needed Compressor fault Turn the system off at the isolator or breaker for 5 minutes, then restart
P5 (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor)) The compressor discharge temperature climbed too high, so the unit shut down to protect itself. Fault – service needed Low refrigerant Check nothing is covering or crowding the outdoor unit
P5 (Inverter slim four-way cassette systems (CIN070R, CIN100R, CIN120R, CIN140R indoor with DONSR series outdoor)) Indoor units on the same outdoor unit are set to conflicting modes, such as one heating and one cooling. Minor fault Indoor units set to different modes on a shared outdoor unit Set all indoor units to the same mode (all cooling or all heating) using the remote
P6 (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor)) The indoor coil got too hot in heating mode, so the unit stopped to protect itself. Minor fault Dirty return air filters Clean the return air filters if they are dirty
P6 (Inverter slim four-way cassette systems (CIN070R, CIN100R, CIN120R, CIN140R indoor with DONSR series outdoor)) Refrigerant pressure dropped too low, so the unit shut down to protect the compressor. Fault – service needed Refrigerant leak Turn the system off at the isolator or breaker for 5 minutes, then restart
P7 (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor)) The indoor coil got cold enough to start freezing in cooling mode, so the unit stopped to protect itself. Minor fault Dirty return air filters restricting airflow Clean the return air filters if they are dirty
P7 (Inverter slim four-way cassette systems (CIN070R, CIN100R, CIN120R, CIN140R indoor with DONSR series outdoor)) The temperature sensor on the outdoor unit’s inverter power transistor (IGBT) has failed. Minor fault Sensor open or short circuit Turn the system off at the isolator or breaker for 5 minutes, then restart
P8 (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor)) The unit detected electrical current above its safe limit and reduced power or shut down. Fault – service needed Unstable mains or grid voltage Check nothing is covering or crowding the outdoor unit

Codes that mean switch the system off

If your Rinnai unit shows EC, turn the system off at the isolator and leave it off. These faults involve the compressor, refrigerant or electrical protection, and running the unit can cause further damage.

The most serious Rinnai fault codes explained

What does Rinnai fault code EC mean? (Inverter slim four-way cassette systems (CIN070R, CIN100R, CIN120R, CIN140R indoor with DONSR series outdoor))

The system has detected a possible refrigerant leak or a fault in its refrigerant leak detection system.

Likely causes:

  • Refrigerant leak in the system
  • Leak detection sensor fault
  • Indoor circuit board fault

Safe checks before you call:

  • Turn the system off at the isolator and stop using it
  • Open windows or doors to ventilate the room
  • Keep open flames away from the unit until it has been checked

What does Rinnai fault code E0 mean? (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor))

The indoor unit has shut down because it detected the system drawing more electrical current than is safe.

Likely causes:

  • Unstable or low mains supply voltage
  • System overloaded or airflow blocked
  • Current sensor or indoor circuit board fault
  • Compressor drawing excessive current

Safe checks before you call:

  • Turn the system off at the isolator or breaker for 5 minutes, then restart
  • Clean the return air filters if they are dirty
  • Check whether lights flicker or other appliances are playing up, which can point to a supply problem

What does Rinnai fault code E4 mean? (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor))

The indoor fan motor is not running properly or its speed signal is not reaching the control board.

Likely causes:

  • Fan jammed or obstructed
  • Indoor fan motor failure
  • Speed feedback circuit fault
  • Indoor circuit board fault

Safe checks before you call:

  • Turn the system off at the isolator or breaker for 5 minutes, then restart
  • Listen and look for the indoor fan spinning after restart, without opening any covers

What does Rinnai fault code E5 mean? (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor))

The indoor and outdoor units have lost communication with each other.

Likely causes:

  • Loose or damaged interconnecting cable between indoor and outdoor units
  • Indoor or outdoor circuit board fault
  • Power supply problem at the outdoor unit

Safe checks before you call:

  • Check the outdoor unit isolator switch is on
  • Turn the system off at the isolator or breaker for 5 minutes, then restart

What does Rinnai fault code Eb mean? (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor))

The indoor unit’s memory chip (EEPROM) cannot be read, so the unit cannot load its settings.

Likely causes:

  • Memory chip poor contact or failure
  • Indoor circuit board fault
  • Power surge damage

Safe checks before you call:

  • Turn the system off at the isolator or breaker for 5 minutes, then restart

What does Rinnai fault code F0 mean? (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor))

The outdoor fan motor is not running properly.

Likely causes:

  • Outdoor fan jammed by leaves or debris
  • Outdoor DC fan motor failure
  • Outdoor circuit board fault

Safe checks before you call:

  • Turn the system off at the isolator or breaker for 5 minutes, then restart
  • Look for leaves or rubbish caught around the outdoor unit and clear anything you can reach without opening it

What does Rinnai fault code F1 mean? (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor))

The power module driving the compressor has shut the system down to protect itself.

Likely causes:

  • Supply voltage too high or too low
  • Blocked outdoor coil causing high system pressure
  • Compressor or compressor wiring fault
  • Power module or outdoor circuit board fault

Safe checks before you call:

  • Turn the system off at the isolator or breaker for 5 minutes, then restart
  • Check nothing is covering or crowding the outdoor unit

What does Rinnai fault code L0 mean? (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor))

The outdoor unit’s internal DC voltage went outside safe limits, so the system shut down. This is a subdivided version of the F1 module protection fault.

Likely causes:

  • Unstable or fluctuating mains supply voltage
  • Outdoor unit controller fault

Safe checks before you call:

  • Check whether lights flicker or other appliances are playing up, which can point to a supply problem
  • Turn the system off at the isolator or breaker for 5 minutes, then restart

What does Rinnai fault code L1 mean? (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor))

The compressor drew more current through one of its windings than is safe, so the system shut down. This is a subdivided version of the F1 module protection fault.

Likely causes:

  • Unstable mains supply voltage
  • Compressor or compressor wiring fault
  • Outdoor unit controller fault

Safe checks before you call:

  • Turn the system off at the isolator or breaker for 5 minutes, then restart
  • Check nothing is covering or crowding the outdoor unit

What does Rinnai fault code L2 mean? (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor))

The compressor lost its normal running rhythm (out of step), so the system shut down. This is a subdivided version of the F1 module protection fault.

Likely causes:

  • High system pressure from a blocked outdoor coil
  • Unstable mains supply voltage
  • Compressor fault
  • Outdoor unit controller fault

Safe checks before you call:

  • Check nothing is covering or crowding the outdoor unit
  • Turn the system off at the isolator or breaker for 5 minutes, then restart

What does Rinnai fault code L3 mean? (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor))

One of the compressor’s electrical phases is missing or not connected, so the system shut down. This is a subdivided version of the F1 module protection fault.

Likely causes:

  • Loose or damaged compressor wiring
  • Compressor fault
  • Outdoor unit controller fault

Safe checks before you call:

  • Turn the system off at the isolator or breaker for 5 minutes, then restart

What does Rinnai fault code L4 mean? (Q series inverter wall-mounted splits (HSNRQ25B, HSNRQ35B, HSNRQ50B, HSNRQ70B, HSNRQ80B systems; HINRQ indoor, HONRQ outdoor))

The power module (IPM) that drives the compressor has failed or shut itself down. This is a subdivided version of the F1 module protection fault.

Likely causes:

  • Power module failure on the outdoor controller
  • Unstable mains supply voltage
  • Compressor fault

Safe checks before you call:

  • Turn the system off at the isolator or breaker for 5 minutes, then restart

Fault confirmed? Here is what to do next

A fault code is the starting point, not the fix. Start here:

Call us on 08 8296 7888 or book online and we will call or text you back ASAP.

Sources for this page

Every Rinnai code above is checked against these Australian documents. Open them yourself to verify anything on this page:

Rinnai fault code FAQs

Where do I find the fault code on a Rinnai air conditioner?

Check the remote or wall controller display first. Some models flash the indoor unit’s lamps in a pattern instead; the table above lists documented lamp patterns alongside their codes. If nothing is showing, the code may only appear while the fault is active.

Can I clear a Rinnai fault code myself?

You can reset the system by turning it off at the isolator or breaker for five minutes. If the code stays gone, it was a one-off. If it returns, the fault is real and needs a licensed technician, and repeated resets can cause further damage on compressor or refrigerant faults.

Does a Rinnai fault code mean I need a new air conditioner?

Usually not. Most codes point to repairable faults like sensors, fan motors or drainage. Our fault find gives you an honest verdict either way, and the fee is credited if you repair with us.

Are these Rinnai fault codes correct for Australian models?

Yes. Every code on this page was checked against Australian documentation (rinnai.com.au), not overseas lists, because the same code can mean different things in different markets. Meanings still vary between model series, so treat this page as reference and cross-check your unit’s manual.

Fault codes for other brands

Not a Rinnai? Every brand below follows the same format: the documented Australian codes, what each one means, how serious it is and what is safe to check yourself.

Mitsubishi Electric codes have their own library: Mitsubishi Electric fault codes. Or start from the full fault code lookup, which covers more than 1,000 codes across 15 brands sold in Australia.

Written by Oliver Hastings, T&K Airpower. Last updated 14/09/2026. Compiled from Australian sources including rinnai.com.au, so you can check every code against the official documentation. Fault code meanings vary between model series and controllers, so treat this page as reference only and never remove panels or work on the refrigeration or electrical parts of the system yourself.

T&K Airpower - Air Conditioner and Electrician Repair experts in Adelaide

Established, Local, and Accountable

We’ve been working in Adelaide homes for over 30 years.

Every job is done by our own technicians, employed, not subcontracted, so the person on your roof or at your switchboard is accountable for the work. We back it with a lifetime workmanship warranty, and we’ll be here to stand behind it long after the job is done.

Our Difference
 
 
 
  
ExcellentGoogle star 1Google star 2Google star 3Google star 4Google star 54.9702 reviews
 
4.9Google star 1Google star 2Google star 3Google star 4Google star 5
 
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 Kaye Cleave profile picture 
 
 
 Kaye Cleave 
 
127 days ago
 
 
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+0
Great service and professional staff. Thank you T& K Airpower. I'm very happy with my new air-conditioner and would highly recommended your company

Owner's reply
Thank you, Kaye! We're thrilled you're happy with your new air-conditioner and appreciate your kind recommendation. It was a pleasure assisting you! 

Thanks, 

Oliver and the T&K Airpower Team! 
08 8296 7888

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 Boti Nagy profile picture 
 
 
 Boti Nagy 
 
186 days ago
 
 
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+0
Been having my home air conditioning serviced by T&K for years and always impressed with how this company operates. From booking an appointment with a repairman to job completion, this is a truly professional operation. But it hasn't lost the human touch. To my surprise and delight, my repairman Daniel rang to inform me he might be later than anticipated because the job he was completing was taking longer. He wasn't that late in the end and was friendly, genial and, most importantly,  efficient and professional. Stayed true to the quoted price too, which didn't break the bank. Highly recommend T&K.

Owner's reply
Thank you so much for your review! Means the world to us hearing great feedback about our team! I will pass this on to Dan and the office Team 😊
  
 
 
 
 
 
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 Jan Sutherland profile picture 
 
 
 Jan Sutherland 
 
561 days ago
 
 
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+0
Quick, efficient and well priced.  Technician was very polite, knowledgeable and completed the task with minimal fuss or disruption.  Will definitely use this company in the future.

Owner's reply
Thank you, Jan! We're delighted to hear about your positive experience with our technician. We look forward to assisting you again whenever you need us.

Thanks,

Oliver and the T&K Airpower Team! 
08 8296 7888

(Translated by Google, see original)
  
 
 
 
 
 
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 Kosta Sotiropoulos profile picture 
 
 
 Kosta Sotiropoulos 
 
607 days ago
 
 
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+2
As Director of CS Real Estate managing a Property Portfolio, one of our business objectives is that we only partner with quality suppliers / tradespeople. Working with high performing and reputable businesses is nonnegotiable.
In late 2024 I contacted T&K Airpower for two separate maintenance jobs. From the moment I made contact with them, I found them to be extremely responsive, reliable and most importantly experts in what they do. There quotes and pricing is very competitive. And further to that, with each job I received a detailed invoice and photos of the works undertaken. I've attached some pictures of the new PC Board installed along with the new wall controller.
I wouldn't hesitate recommending T&K Airpower, Cindy, Julie and the entire team do a great job. As a customer, I know my landlords are in great hands.
Thank you to the team at T&K Airpower.

Owner's reply
Thank you, Kosta, for your thoughtful review and kind words about our team! We're thrilled to hear about your positive experience and look forward to continuing to support your property portfolio needs.

Thanks,  

Oliver and the T&K Airpower Team!  
08 8296 7888
  
 
 
 
 
 
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 Aaron Albino profile picture 
 
 
 Aaron Albino 
 
613 days ago
 
 
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+1
The guys were half an hour earlier than expected. Although it was nearly two weeks from when I put the warranty claim in with Hitachi.They were very thorough in their inspection and completely contradictory to the installers opinion who said it was a fault with the unit itself.
The problem is still unresolved !

Owner's reply
We're sorry to hear this, Aaron. Please contact our customer service so we can assist you further and help resolve the issue promptly.

Thanks,

Oliver and the T&K Airpower Team! 
08 8296 7888
  
 
 
 
 
 
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 Davin & Jodie Pickard 
 
677 days ago
 
 
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+1
Excellent communication and on site service

Owner's reply
Thank you, Davin and Jodie, for your kind words! We're thrilled to hear you enjoyed our communication and on-site service. Your feedback motivates us to keep delivering quality service.

Thanks,

Oliver and the T&K Airpower Team! 
08 8296 7888
  
 
 
 
 
 
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 T & J Air Conditioning profile picture 
 
 
 T & J Air Conditioning 
 
838 days ago
 
 
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+0
T & K were very professional. They handled our warranty claim with Mitsubishi Electric within a few days. The technician Nathan was great to deal with and communicated well.

Owner's reply
Thank you, Tom! We're glad to hear Nathan and the team at T & K provided you with excellent service. Your satisfaction with our warranty process means a lot to us.

(Translated by Google, see original)
  
 
 
 
 
 
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 Angela White profile picture 
 
 
 Angela White 
 
2 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
A big thank you to all the team at T&K Airpower. From the first call to the visit and quote to the installation of a new Mitsubishi air-conditioning unit we received a truly professional service. The team spent the time explaining the process and answering our questions and were very courteous and obliging. They thoroughly cleaned up after themselves. The office staff were also really helpful. We have asked them to place us on their annual service list. Overall they all went out of there way to ensure our request was met at a high level. We most certainly will recommend them to anyone looking at buying a new unit and or for a yearly service. A great job well done.

Owner's reply
Hi Angela! Thank you for the lovely review, the team was stoked to see it. So good to hear William took care of your air conditioning installation for you in Firle. Do not hesitate to call us on 08 8296 7888 if you ever need us again. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
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 Lilian Jovel profile picture 
 
 
 Lilian Jovel 
 
8 days ago
 
 
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Artie Filippou showing good manners toward us, showing good knowledge how to perform  his job,

Owner's reply
Hi Lilian! Thanks heaps for taking the time to leave us a review, we really appreciate it. Great to hear Artie got your air conditioning servicing sorted in Para Vista. We are always here on 08 8296 7888 if you need anything down the track. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
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 Angela Maltby profile picture 
 
 
 Angela Maltby 
 
9 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Toby came out quoted on the job, came back with the part and fixed everything. No fuss, no scams. Friendly, reliable and trustworthy. Will definitely use them again and highly recommend to anyone needing their A/C fixed.

Owner's reply
Hi Angela! Thanks heaps for the kind review, we really appreciate you taking the time. Glad we could get you sorted, and give us a bell on 08 8296 7888 if you ever need a hand. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
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 Maddie Maltby profile picture 
 
 
 Maddie Maltby 
 
9 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Had Toby come out and fix our ducted AC, very professional but also super friendly and down to earth! Excellent service and will definitely be reaching out again in the future!

Owner's reply
Hi Maddie! Really appreciate the great review, thank you. So glad you were happy with the team, and don't hesitate to give us a call on 08 8296 7888 anytime. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
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 Cat Vas profile picture 
 
 
 Cat Vas 
 
9 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Always the best. Would never let someone else touch my aircon ever again!

Owner's reply
Hi Cat! Thanks so much for the great review, it genuinely means a lot to the team. So glad we could help you out. Give us a call anytime on 08 8296 7888 if you ever need us. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
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 Kath Atkins profile picture 
 
 
 Kath Atkins 
 
9 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Ciaran was very helpful and explained everything in detail that he was doing. Will use him again if needed in the future.

Owner's reply
Hi Kath! Thanks heaps for the kind review, we really appreciate you taking the time. Glad we could get you sorted, and give us a bell on 08 8296 7888 if you ever need a hand. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
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 Clive ansell profile picture 
 
 
 Clive ansell 
 
15 days ago
 
 
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Toby provided excellent and efficient service and explained repairs need lus cots ap- obtained necessary items and installed same plus provided picture of before and after work done

Owner's reply
Hi Clive! Thank you for the lovely review, the team was stoked to see it. So good to hear Tobias took care of your air conditioning servicing for you in Brighton. Do not hesitate to call us on 08 8296 7888 if you ever need us again. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
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 john profile picture 
 
 
 john 
 
16 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Excellent service. Toby was professional, efficient and communicated well.

Owner's reply
Hi john! Thanks heaps for the kind review, we really appreciate you taking the time. Glad we could get you sorted, and give us a bell on 08 8296 7888 if you ever need a hand. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
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 Ping Goh profile picture 
 
 
 Ping Goh 
 
16 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Received excellent service and communication from Tobias today for my annual RC ducted system and split unit service. Tobias identified a small issue in the ducting, explained it well and sought my agreement to repair it, which was very much appreciated.

Owner's reply
Hi Ping! Really appreciate the kind words, reviews like this mean a lot to us. Glad Tobias could look after your air conditioning servicing in Athelstone. Give us a call anytime on 08 8296 7888 if you ever need us. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
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 michael noble profile picture 
 
 
 michael noble 
 
17 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Great service. Even helped clean my box gutter.

Owner's reply
Hi michael! Really appreciate the kind words, reviews like this mean a lot to us. Glad Tobias could look after your air conditioning servicing in Somerton Park. Give us a bell on 08 8296 7888 anytime you need a hand. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
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 Dominic Coppola profile picture 
 
 
 Dominic Coppola 
 
18 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Fantastic and friendly service. Repair options were presented and discussed to agree on the best pathway forward.  Toby was excellent and very professional

Owner's reply
Hi Dominic! Thanks heaps for the kind review, we really appreciate you taking the time. Glad we could get you sorted, and give us a bell on 08 8296 7888 if you ever need a hand. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
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 Lyn Jefferies profile picture 
 
 
 Lyn Jefferies 
 
18 days ago
 
 
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Great service & prompt attention. Toby & Lachy were friendly and knowledgeable working carefully on a tricky stairwell and with a nosy toddler asking questions. Cleanup was exceptional when replacing my oven. Very happy.

Owner's reply
Thank you, Lyn! We're thrilled you were pleased with our service and pricing. Your feedback means a lot to us!
  
 
 
 
 
 
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 Carla kertesz profile picture 
 
 
 Carla kertesz 
 
18 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Very professional company, very freindly and accommodating.I have them come every year now to service my air-conditioners and not had any problems since. I am very happy!

Owner's reply
Thank you so much for your kind words, Carla! We're delighted to hear you're happy with our service and that your air-conditioners are running smoothly. We look forward to helping you again next year. 

Thanks,

Oliver and the T&K Airpower Team! 
08 8296 7888
  
 
 
 
 
 
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 Helen Miller profile picture 
 
 
 Helen Miller 
 
18 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
I rung Mitsubishi Electric who recommended T&K Airpower. From the moment I rung to book an appointment to having a technician (Ciaran) fix my airconditioner, the service was extremely professional. Definitely recommend. Thankyou.

Owner's reply
Hi Helen! Thanks heaps for taking the time to leave us a review, we really appreciate it. Great to hear Ciaran got your air conditioning servicing sorted in Redwood Park. We are always here on 08 8296 7888 if you need anything down the track. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
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 Meredith Perry profile picture 
 
 
 Meredith Perry 
 
19 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
From my first to my last contact with T&K AirPower I was impressed by their efficiency and professionalism. The reception staff were friendly and helpful, and the young men who installed our new air conditioning system were punctual, polite and efficient. Thank you Ollie, Noah and Mick for a job well done. The customer service provided by everyone was of the highest standard, and I have no hesitation in thoroughly recommending T&K AirPower.

Owner's reply
Hi Meredith! Thanks heaps for the kind review, we really appreciate you taking the time. Glad we could get you sorted, and give us a bell on 08 8296 7888 if you ever need a hand. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
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 Chris Koukouvitakis profile picture 
 
 
 Chris Koukouvitakis 
 
22 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
We had our air con serviced and had an air deflector added , Tony was very informative and helpful . Do you do Pension rates I forgot to ask ??

Owner's reply
Hi Chris! Thanks so much for the great review, it genuinely means a lot to the team. So glad we could help you out. Give us a call anytime on 08 8296 7888 if you ever need us. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
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 Suzanne Cufone profile picture 
 
 
 Suzanne Cufone 
 
23 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Work ethic and professionalism first class from the admin staff to technician.  Thanks to Martin for solving my problems and for a job truly well done!  Highly recommend T&K Airpower.

Owner's reply
Hi Suzanne! Really appreciate the great review, thank you. So glad you were happy with the team, and don't hesitate to give us a call on 08 8296 7888 anytime. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
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 Sandra Berry profile picture 
 
 
 Sandra Berry 
 
23 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Had great service from T&K AirPower particularly Tristan with my solar panels. Taking great care removing and replacing after roof tile repairs.

Owner's reply
Hi Sandra! Really appreciate the kind words, reviews like this mean a lot to us. Glad Tristan could look after your electrical installation in Gulfview Heights. Give us a call anytime on 08 8296 7888 if you ever need us. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
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 Garry Baker profile picture 
 
 
 Garry Baker 
 
24 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Tristian came, very courteous and informative. Problem resolved and added a reflective panel to our air con to make run cooler in summer. Great service and completed same day.

Owner's reply
Hi Garry! Thanks so much for the great review, it genuinely means a lot to the team. So glad we could help you out. Give us a call anytime on 08 8296 7888 if you ever need us. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
 Posted on Google Google 
 
 Wayne profile picture 
 
 
 Wayne 
 
29 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Toby was very friendly and courteous, he arrived at the time that was given. I would recommend him to do any work that is needed.

Owner's reply
Hi Wayne! Thanks so much for the great review, it genuinely means a lot to the team. So glad we could help you out. Give us a call anytime on 08 8296 7888 if you ever need us. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
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 Carol Kennewell profile picture 
 
 
 Carol Kennewell 
 
31 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Fantastic service. Toby was really great. He explained everything and worked out the cost when he knew what he was going to do for us. We would recommend hiim and the company anytime. Thanks for the great service.

Owner's reply
Hi Carol! Thank you for the lovely review, the team was stoked to see it. So good to hear Tobias took care of your air conditioning servicing for you in Morphett Vale. Give us a bell on 08 8296 7888 anytime you need a hand. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
 Posted on Google Google 
 
 Anne profile picture 
 
 
 Anne 
 
31 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Very positive experience with this small family business ...from making an enquiry to having the expertise of Cieran overseeing our air-conditioning  service. What a delightful young man ...very impressed & will use company again when we need future electrical services.

Owner's reply
Hi Anne! Thank you for the lovely review, it means a lot to us. We are always here on 08 8296 7888 if you need anything down the track. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
 Posted on Google Google 
 
 Joffre Toshach profile picture 
 
 
 Joffre Toshach 
 
31 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Punctual great friendly service highly recommended

Owner's reply
Hi Joffre! Thanks heaps for taking the time to leave us a review, we really appreciate it. Great to hear Ciaran got your electrical servicing sorted in Hillcrest. Give us a call anytime on 08 8296 7888 if you ever need us. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
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 James Rock profile picture 
 
 
 James Rock 
 
31 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Tristan was terrific.  Thorough professional and efficient.  Could not fault the service.  Thanks.

Owner's reply
Hi James! Really appreciate the kind words, reviews like this mean a lot to us. Glad Tristan could look after your air conditioning servicing in Torrensville. Give us a bell on 08 8296 7888 anytime you need a hand. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
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 bill chandler profile picture 
 
 
 bill chandler 
 
43 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Good professional service , great communication and customer updates on technicians arrival times

Owner's reply
Hi bill! Thanks so much for the great review, it genuinely means a lot to the team. So glad Nathan could help you out with your air conditioning servicing over in Craigburn Farm. Give us a call anytime on 08 8296 7888 if you ever need us. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
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 Russell Thomson profile picture 
 
 
 Russell Thomson 
 
46 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Professional, courteous, communicate well, seamless service, good product knowledge and sensibly priced

Owner's reply
Hi Russell! Thank you for the lovely review, the team was stoked to see it. So good to hear Nathan took care of your electrical servicing for you in Brighton. Give us a call anytime on 08 8296 7888 if you ever need us. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
 Posted on Google Google 
 
 Victoria McGregor-Reid profile picture 
 
 
 Victoria McGregor-Reid 
 
46 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Nathan did a wonderful job! Thanks for your prompt service! 👏😊

Owner's reply
Hi Victoria! Really appreciate the great review, thank you. So glad you were happy with the team, and don't hesitate to give us a call on 08 8296 7888 anytime. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
 Posted on Google Google 
 
 Charles Bartlett profile picture 
 
 
 Charles Bartlett 
 
46 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Most excellent thorough friendly service.
Makes a nice change from what you get elsewhere.

Owner's reply
Hi Charles! Really appreciate the great review, thank you. So glad you were happy with the team, and don't hesitate to give us a call on 08 8296 7888 anytime. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
 Posted on Google Google 
 
 Larry Rawlins profile picture 
 
 
 Larry Rawlins 
 
47 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Great service, Ciaran was a very friendly and knowledgeable technician.

Owner's reply
Hi Larry! Thanks heaps for the kind review, we really appreciate you taking the time. Glad we could get you sorted, and give us a bell on 08 8296 7888 if you ever need a hand. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
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 Gilbertt Kat profile picture 
 
 
 Gilbertt Kat 
 
50 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Cieran did our air conditioner service today. Very efficient, lovely guy, no fuss, explained thoroughly about the status of my unit. Thoroughly recommend!!

Owner's reply
Hi Gilbertt! Thanks heaps for taking the time to leave us a review, we really appreciate it. Great to hear Ciaran got your air conditioning servicing sorted in Tusmore. Give us a bell on 08 8296 7888 anytime you need a hand. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
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 Lucia Puzella profile picture 
 
 
 Lucia Puzella 
 
51 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
We had our solar panel's serviced on the 9/9/26 by Tristan, I was extremely impressed and happy with his professionalism. We also have our air-conditioning service with them.
I would highly recommend them, that's why they deserved a 5 star. Thankyou T&K Air-conditioning and Electrical.

Owner's reply
Hi Lucia! Thanks so much for the great review, it genuinely means a lot to the team. So glad we could help you out. Give us a call anytime on 08 8296 7888 if you ever need us. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
 Posted on Google Google 
 
 Lyn and Wolfgang Zeidler profile picture 
 
 
 Lyn and Wolfgang Zeidler 
 
53 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Efficient timely service

Owner's reply
Hi Lyn! Thanks so much for the great review, it genuinely means a lot to the team. So glad we could help you out. Give us a call anytime on 08 8296 7888 if you ever need us. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
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 Mario Pepicelli profile picture 
 
 
 Mario Pepicelli 
 
53 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Toby was excellent, a really skilled tradesman. Worked out the issue with the air conditioner explained the options available. Once I selected the option he carried out the repair works.

Owner's reply
Hi Mario! Thank you for the lovely review, it means a lot to us. We are always here on 08 8296 7888 if you need anything down the track. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
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 Barbara Isaacson profile picture 
 
 
 Barbara Isaacson 
 
53 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Extremely happy, very thorough and friendly been using T&K Airpower for some 20 years plus, and have never had to complain about their service. Had a Solar Health Check done, and an Electrical Switch Board Upgrade that was badly needed, service was second to none, highly recommend. Price all up was good, and peace of mind guaranteed. 😀😀

Owner's reply
Thanks so much for your kind words! Have a lovely weekend! 👍😁
  
 
 
 
 
 
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 Jamin Stojsavljevic profile picture 
 
 
 Jamin Stojsavljevic 
 
53 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Great experience. 1st place I’ll call now for repairs or a new system. Excellent technical knowledge, friendly, answered all of my questions. Fix and upgrade of my existing system was well done and installers were considerate, friendly and knowledgeable.

Owner's reply
Hi Jamin! Really appreciate the kind words, reviews like this mean a lot to us. Glad Jacob could look after your air conditioning repairs in WALKERVILLE. Do not hesitate to call us on 08 8296 7888 if you ever need us again. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
 Posted on Google Google 
 
 Paul Maschgan profile picture 
 
 
 Paul Maschgan 
 
56 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
If you're looking for a company that provides excellent communication, tradespeople who arrive on time, outstanding workmanship (thanks Tristan & Jacob) and leave everything clean and tidy then T & K Airpower is the company you are looking for.
From my first contact with the office staff through to the completion of the work, the entire process was professional and hassle free. Nothing was too much trouble, and the team was friendly, knowledgeable, and happy to answer any questions.
After reading the reviews before choosing T & K Airpower, I had high expectations,  and I am pleased to say they were spot on. I would not hesitate in recommending them to anyone looking for quality air conditioning  service and installation.

Owner's reply
Thank you so much, Paul, for your thoughtful feedback! We're thrilled to hear that Tristan, Jacob, and the team delivered a seamless experience. Your recommendation means a lot to us. 

Thanks,  

Oliver and the T&K Airpower Team!  
08 8296 7888

(Translated by Google, see original)
  
 
 
 
 
 
 Posted on Google Google 
 
 Ben Nicholls profile picture 
 
 
 Ben Nicholls 
 
57 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Always great service and advice from the T&K AirPower crew. Been using them forever, never any issues

Owner's reply
Hi Ben! Thanks heaps for taking the time to leave us a review, we really appreciate it. Great to hear Ciaran got your electrical servicing sorted in Hampstead Gardens. We are always here on 08 8296 7888 if you need anything down the track. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
 Posted on Google Google 
 
 Bernard McCallum profile picture 
 
 
 Bernard McCallum 
 
57 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Last week we had a replacement air conditioning system installed by T&K. Technicians Oliver/Kieran and Noah attended all day Wednesday 21/2/24. Oliver attended Friday 23/2/24. The work performed was outstanding. My wife and I rate very highly the service provided before the installation and during the installation. Should you consider utilising T&K you won’t regret it. What we rate very highly was the professionalism and meticulous care taken.

Owner's reply
Hi Bernard! Thanks so much for the great review, it genuinely means a lot to the team. So glad we could help you out. Give us a call anytime on 08 8296 7888 if you ever need us. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
 Posted on Google Google 
 
 Malcolm Skilton profile picture 
 
 
 Malcolm Skilton 
 
58 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
I frequently  base my assessment of any service provider on first contact. In the case of T&K Airpower Air Conditioning and Electrical, first contact was very positive.
The quote I received was very reasonable (especially with the seniors discount), and I accepted that quote without needing to go to any other providers.
The service tech (Nathan) arrived when scheduled and was very polite and helpful. He completed the required work efficiently, and within a very reasonable time frame.
I would no hesitation in useing this company again.

Owner's reply
Hi Malcolm! Thanks heaps for taking the time to leave us a review, we really appreciate it. Great to hear Nathan got your air conditioning servicing sorted in Craigmore. Give us a call anytime on 08 8296 7888 if you ever need us. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
 Posted on Google Google 
 
 Meg Michell profile picture 
 
 
 Meg Michell 
 
60 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Fabulous service

Owner's reply
Hi Meg! Thanks so much for the great review, it genuinely means a lot to the team. So glad Ciaran could help you out with your air conditioning servicing in North Adelaide. We are always here on 08 8296 7888 if you need anything down the track. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
 Posted on Google Google 
 
 Michael Cusack profile picture 
 
 
 Michael Cusack 
 
60 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
The guys were great. Very professional and personable. They worked hard and cleaned up before they left. Highly recommended and I would highly recommend them. So good these days to get prompt and professional help.

Owner's reply
Hi Michael! Really appreciate the kind words, reviews like this mean a lot to us. Glad Oliver could look after your air conditioning installation in Birdwood. We are always here on 08 8296 7888 if you need anything down the track. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
 Posted on Google Google 
 
 Rosslyn Eftimiou profile picture 
 
 
 Rosslyn Eftimiou 
 
61 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Ciaran was friendly and very professional. Excellent service

Owner's reply
Hi Rosslyn! Really appreciate the great review, thank you. So glad you were happy with the team, and don't hesitate to give us a call on 08 8296 7888 anytime. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
 Posted on Google Google 
 
 Jodie Bradbrook profile picture 
 
 
 Jodie Bradbrook 
 
67 days ago
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
This business has exceptional customer service and lovely technicians.  They do quality work and are great to deal with.  Highly recommend.

Owner's reply
Hi Jodie! Thanks so much for the great review, it genuinely means a lot to the team. So glad Tristan could help you out with your air conditioning repairs over in Richmond. Give us a call anytime on 08 8296 7888 if you ever need us. Cheers, Oliver and the T&K Airpower team
  
 
 
 
 
 
 
 
 
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With Over 30 Years of Experience, You Can Trust Our Certified Technicians To Do The Job Right The FIRST TIME for your air conditioner and electrician needs.

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Honest Advice on Your Home's Comfort, Energy and Safety

Every price and answer on this page comes from the same pricing and diagnostics our own technicians use, so what you see is a genuine indication, not a teaser.

Where an upgrade is genuinely needed, we’ll explain why in plain terms and set out your best option. No pressure, no unnecessary work.

We only recommend it when it improves safety, reliability or long-term performance.

We’ll call or text you back ASAP!

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Servicing Adelaide Homes and Surrounding Suburbs

We provide residential electrical energy solutions and upgrades across metropolitan Adelaide, including inner eastern, western and southern suburbs