If your AC unit fails to shut off, your indoor temperatures may continue to increase become unbearable. Also, your system will waste a lot of energy, resulting in high energy bills.
If you experience this problem, you need to first troubleshoot and find a quick solution. Here are possible reasons why your AC unit won't turn off.
A thermostat regulates indoor temperature by sending out signals to turn your air conditioning unit on and off. You can set your thermostat to automatically turn off the unit when indoor temperatures reach the desired levels.
If you have a damaged thermostat, you might notice specific issues with your HVAC unit. Some of the problems that could affect your thermostat include:
- A loose connection between wires
- Faulty wires
- A broken switch that prevents communication between components
- Incorrect settings or power failure due to dead batteries
If you think your thermostat has either of these problems, try resetting it and replace the batteries. But if these solutions don't work, call an AC repair specialist to inspect and replace your thermostat. They can also set your thermostat to the correct level so your AC unit will turn off when it should.
Dirty Air Filters
The AC unit's air filters collect dirt and debris from the outside air. That's why you should clean them regularly to ensure they keep working at an optimum level.
Keep in mind that clogged filters can affect the performance of your AC system. If the filter is dirty, your AC's blower fan will have to work harder to cool your home. This problem will cause your energy bills to increase and your AC unit to wear down faster.
You can ask an AC repair expert to check out your system and assess any damage by a dirty filter. You also need to change the air filter regularly to prevent serious issues and maintain your unit's efficiency.
Low Refrigerant Levels
HVAC systems will often run continuously when they're low on refrigerant. That's why a certified technician checks your system's refrigerant levels during their routine maintenance visits. If your AC struggles to turn off, it could be due to a leak in the evaporator coil. Remember that leaking refrigerant is a huge threat to your health, so don't take any risks.
Though repairing an AC unit may seem like a simple job, always leave this task to a skilled technician. They can quickly diagnose the root cause of any problems you encounter and get your system back to its normal operating state in no time, so contact an HVAC repair specialist today.