Electric control failure is a typical air conditioner problem affecting your AC unit's performance and efficiency. It occurs when the compressor and fan controls wear out or get damaged, especially when the AC turns on and off frequently. This can happen when the system is oversized or the thermostat settings are not optimal. Electric control failure can also be caused by corrosion of wires and terminals, which can impair the electrical connections and contacts.

What to Do When Your AC Has an Electric Control Failure

If you suspect that your AC has electric control failure, you can troubleshoot and fix the problem by checking the thermostat settings. Ensure the thermostat is set to cool and the fan setting is on auto. If the thermostat is set to heat mode or the fan is on constantly, it can cause your AC to blow warm air or run continuously. Adjust the temperature setting to see if the AC responds accordingly.

Check the Sensor Position

Some AC units have a sensor near the evaporator coil that measures the temperature of the air coming from the blower. If this sensor is knocked out of position or faulty, it can affect the operation of the AC. You can gently bend the sensor back into place or replace it if necessary.

Check the Electrical Connections and Contacts

Turn off the power to your AC unit and inspect the wires and terminals for any signs of corrosion, damage, or loose connections. You can use a multimeter to test the cables' and contacts' continuity and voltage. If you find any problems, you can clean, repair, or replace them as needed.

Check the Compressor and Fan Controls

The compressor and fan controls are responsible for turning the compressor and fan motors on and off according to the cooling demand. If these controls are worn out or defective, they can prevent your AC from starting or stopping correctly. You can use a multimeter to test the resistance and current of the controls and compare them with the manufacturer's specifications. If they are out of range, you may need to replace them.

Consider Hiring an Air Conditioning Repair Technician

If you are not comfortable or confident with doing these steps yourself, you should call a professional service technician to diagnose and repair your AC unit. Electric control failure can be a complex and dangerous issue that requires specialized tools and skills.

Electric control failure can affect your comfort and energy bills, so addressing it as soon as possible is vital. If you can't fix your AC, it's crucial to contact a technician to fix the electric control failure in your air conditioning system and enjoy a cool and comfortable home. Reach out to air conditioning services near you to learn more.