When your air conditioner stops working, a few simple checks fix a surprising number of faults before you need a technician: the power and safety switch, the remote and its batteries, the mode and temperature settings, a blocked filter, and a tripped circuit breaker. Here is a safe, step-by-step DIY troubleshooting guide, and the point where it is time to call a professional.
DIY Guide: How to Fix a Broken Air Conditioner – Troubleshooting Tips and Tricks
The last thing you want in the middle of a heat wave is for your air conditioner to fail now that summer has arrived. But if it happens, don’t worry; you can try a few things before contacting a specialist. Here is a quick guide on how to fix a broken air conditioner.
- Examine the thermostat: Verify that it is set at the appropriate temperature and mode (heat/cool), and that the battery is not dead. Make sure your smart device is online if your thermostat is controlled by one.
- Look for error codes: A fault code can be shown on the controller or, in the case of hi-wall units, by flashing lights on the indoor unit if the device has stopped functioning. Before performing any power resets, record the error code to help with troubleshooting.
- Inspect the air filter: Your air conditioner may have to work harder than necessary if an air filter is unclean since it can limit airflow. As a result, the unit can use more energy and last less time overall. Every three months, it’s a good idea to check the air filter. If necessary, clean or replace the filter.
- Check the outside unit: Look for any obstructions to the airflow, such as leaves or dirt. Remove any obstructions and cut any plants or trees close by. The compressor may malfunction if the outside unit is dusty or blocked, which will lead to overheating. If your air conditioner is placed next to a fence or other obstruction, this could result in air recirculating, which would lower performance. This issue can be solved with an air deflector.
- Investigate the circuit breaker: Check to see if the breaker has tripped. In that case, try resetting it to see whether the air conditioner turns on. A power surge or an overloaded circuit may be to blame for a tripped breaker. Call a professional if the breaker keeps tripping because it can be an indication of a more serious issue.
- Switch off the power: After you have made sure everything is in order, a power reset can help fix any intermittent problems. First, turn the circuit breaker off, a fter five minutes, turn the circuit breaker back on. While it won’t resolve any serious problems, it can correct errors brought on by temporary problems like overheating or power outages.
It is preferable to contact a professional air conditioning repair company if none of these solutions work to resolve the issue. A professional can identify the problem quickly and safely, and then fix it. They will be equipped with the skills and knowledge needed to identify any issues, address them, and look out for any possible risks to safety. Try to stay cool in the meantime by using fans or spending time in air-conditioned areas such as shopping centres or public libraries.
To prevent further malfunctions, keep your air conditioning system in good working order with regular maintenance. The longevity and efficiency of the device can both be improved with routine maintenance. In the long run, this can help you save money on expensive repairs and running costs.
In a Nutshell
- Check the thermostat and make sure it’s set correctly and the battery isn’t dead
- Check the air filter and make sure it’s not clogged or dirty
- Check the outside unit and make sure there’s no blockage of airflow
- Check the breaker and make sure it hasn’t tripped
- Check fro fault codes and record them to assist with diagnostics
- Reset the power to the unit, if the unit still doesn’twork, call a professional to handle it
Need Help?
T&K Airpower has been working to keep homes and businesses comfortable and efficient for over 25 years. Is your air conditioner not working correctly? Can’y get your AC to turn on? Give us a call, and we will be more than happy to help.
Frequently asked questions
What should I check first when my air conditioner stops working?
Start with the thermostat (correct temperature and mode, and a live battery or online smart device), then look for an error code on the controller or flashing lights on the indoor unit and write it down before resetting the power.
How often should I check my air conditioner filter?
About every three months. A dirty filter restricts airflow, makes the unit work harder, uses more energy and shortens its life, so clean or replace it as needed.
Why is my air conditioner not cooling properly?
A blocked or dirty outdoor unit is a common cause. Clear leaves, dirt and plant growth from around it, because a dusty or obstructed outdoor unit can overheat the compressor and cut performance.
When should I stop DIY and call a technician?
If the thermostat, filter and outdoor unit checks do not help, or you see a persistent error code, book a professional air conditioner repair rather than resetting the unit repeatedly.
