An airconditioning compressorcreates cool air by circulating refrigerant through your ACunit. If your ACisn’t working, there’s a good chance that a faulty compressorcould be the culprit. You can diagnose problems with your compressorby using a multimeter, or a device that can measure volts, amps, and ohms. 3 Ways to Check an AC Compressor - wikiHow Is this answer helpful?Thanks!Give more feedbackThanks!How can it be improved?How can the answer be improved?Tell us how 6 Reasons Your Air Conditioner Keeps Tripping The Circuit Dirty air filter. Imagine forcing a pillow over your face. Hard to breathe right? That's what a dirty filter Dirty outside unit. Your AC system has an inside unit and an outside unit. The inside unit absorbs Issues with the circuit breaker. The issue may not be with the AC itself but rather with the breaker. Motor has shorted. Electric motors in your AC can run for hours and hours and can take quite a bit See all full list on ragsdaleair A simple air conditioning circuit and cycle diagram that The component at #1 in this air conditioning circuit and cycle diagram is the compressor. The compressor is the heart of the system; it keeps the refrigerant flowing through the system at specific rates of flow, and at specific pressures.