Which is a common symptom of a failing compressor?

A failing compressor can lead to several problematic symptoms within an air conditioning system, with the inability to cool properly being a primary indicator. When the compressor is not functioning as intended, it may not effectively compress the refrigerant, which is essential for the cooling process. As a result, the system struggles to remove heat from the indoor air, leading to inadequate cooling.

Unusual noises may also manifest, such as grinding, clanking, or hissing sounds, which can indicate internal damage or a malfunction within the compressor. These noises often suggest that the compressor is working harder than normal or is on the verge of failure, contributing to the failure to cool.

In contrast, while a unit producing excess heat, a constantly running fan, or no air coming from vents may indicate problems, they are not as directly correlated with compressor failure as the inability to cool properly. A fan that runs continuously might suggest an issue with the thermostat or other components, and similarly, loss of airflow can stem from ductwork problems or a broken blower motor unrelated to the compressor’s operational status. Thus, the inability of the compressor to maintain adequate cooling showcases a more definitive link to its failure.