How Does a Central AC Work?

Central air conditioner does not cool, too noisy or does not run? This video provides information on how a central air conditioner works and offers troubleshooting tips to assist you in diagnosing and repair.

Here is a list of the most commonly replaced parts associated with each air conditioner symptom:

Central air does not cool at all: contactor, run capacitor, condenser fan motor, capacitor
Central air is noisy: fan blade, condenser fan motor, contactor, compressor
Condenser fan motor does not run: run capacitor, capacitor, condenser fan motor
Condensing unit does not run: run capacitor, capacitor, contactor