4 Reasons Your Air Conditioner May Not Be Turning Off
If your air conditioning unit is operating non-stop while the thermostat is shut off, the main culprit might be the compressor. However, many other reasons may cause your AC appliance not to shut down. From a blocked air filter to a faulty relay switch. So, if your unit fails to switch off, engage an AC repair expert and have them diagnose and fix the issue. Here are a few probable causes why your AC won't turn off.
Blocked Air Filter
The most obvious and known way to troubleshoot an air conditioning unit that fails to stop even after turning off the thermostat is by checking the air filters. If they are blocked, they can impede the ability of your appliance to cool and cause incomplete heating and cooling cycles. Additionally, if the filters get dirty and are not cleaned on time, the blockage can cause more serious issues down the road and pricey repairs. A certified AC technician can help you change the filter depending on the size of your home and the unit's workload.
Electrical Issues
The AC unit is made up of many electrical components. Therefore, when the relay switch gets jammed in one position, the unit gets a continuous power supply and will run non-stop. Additionally, the relay switch can get stuck when the contactor fails. If this is the case, it's advisable to have a specialist examine the issue and replace the switch to avoid future malfunctions.
Small Air Conditioning Unit
An AC appliance works by drawing in warm air from your living space, eliminating its humidity and moisture, and cooling it before sending it back out. This cycle will keep repeating until the desired temperature is reached. The unit will turn off as soon as it achieves the set temperature. However, if your aircon appliance is small for your living space, it will work harder to achieve the desired temperature without succeeding. This means the unit will not shut off, and your energy consumption will be higher. A professional can advise you on the right AC size depending on the square footage of your home.
Faulty Thermostat Wiring
The thermostat wiring can be damaged due to old age. As your unit ages, the wiring starts wearing out, exposing the inner wires. The wires then get into contact and provide a continuous power supply to the contactor. Consequently, the condenser will run continuously and not shut down with the unit. If you suspect faulty thermostat wiring is causing your appliance not to shut down, get in touch with an expert to inspect it.
There are many reasons why your AC appliance fails to shut down. However, an air conditioning repair professional can inspect, identify and fix the issue to help you lower your home's energy consumption.
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