Air Conditioner Motor Not Working

An air conditioner contactor is an electrical switch that controls the compressor and condenser fan motor.

Air conditioner motor not working.

Shut off the power supply to the air conditioner at the disconnect or breaker panel. The relay board provides voltage to many components of the air conditioner including the fan motor. Do not touch the capacitor terminals or you may get shocked. Before replacing the board make sure you check more commonly defective parts particularly the fan motor capacitor and the fan motor itself.

Air conditioner not cooling air conditioner won t blow cold air. If the relay board isn t working properly the fan might not run. Relay boards are often misdiagnosed. Air conditioner fans not working can be a sign of a frozen evaporator coil.

Do not proceed if you re not sure you ve properly shut off the power. This is another part that must be repaired by a professional hvac contractor. It is common for the contactor to go bad over time which restricts the outside fan from working properly. The evaporator coil sits inside your home within the air handler unit furnace or fan coil pulling heat and humidity from indoor air as it passes through.

Most ac systems are designed to work within a large range of temperature variants and environments however due to numerous causes the air conditioner is still prone to overheating. If these aren t the problem check the air filter. Remove the service panel on the a c unit. Another common problem with the air conditioner blower motor not starting up is caused by overheating.