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Q.

What are Signs of a Failing AC Compressor?

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6 months

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0 2025-06-17T10:21:36+00:00

As per my recent experience, I can share a few home AC compressor failure symptoms. Last month, I noticed that my AC was not working properly. Even though the temperature was low, I could hear odd sounds and could feel warm air blowing. When I hired a professional, he inspected the problem and confirmed that it was caused by a failed AC compressor.

What are the AC Compressor Failure Signs?

In an attempt to learn more, I looked through my AC manual and discovered a number of obvious indicators that point to compressor failure:

Weak Airflow

Placing your hands below the vents is the best method to determine whether the airflow is weak. Your air conditioner has a compressor problem if you feel little to no airflow or warm air when it should be cold.  

Loud Banging Noises

These AC noises are a sign that the compressor is having problems starting and will probably break down soon. The compressor's electrical parts failing is also indicated by the hammering sound. 

You should shut off your unit right away and get in touch with a specialist for a comprehensive system inspection.

Leaking Refrigerant

Weak air flow, hissing noises, water surrounding your HVAC unit, or ice forming on the evaporator coils are all indicators of a refrigerant leak.

Tripped Circuit Breaker

It is a bad indicator and a sign of AC compressor failure if your outside unit is continuously tripping the circuit breaker. It indicates that the compressor is overheated and requires more power to operate. In this situation, turning it back on won't help; you need to call an HVAC expert right away.

These are a few signs that I learned from my AC manual. I’d suggest you to always consult your manual and call a technician when in doubt.

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