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What can cause an AC compressor to fail?

Sep 7

It is easy to see the function of the refrigerant in your AC by comparing it with the blood in your body. The refrigerant flows through your AC system and changes from a gaseous to a liquid form. This cools down your home. The system or body will not function properly if it isn't supplied with the right amount. This phase change cannot be achieved without the compressor. 

It is the component that circulates the refrigerant throughout the system. The compressor can be described as the heart. A broken compressor is not something you can afford to replace. You can start by looking for signs of a broken compressor before it becomes too severe that you have to call a commercial air conditioning company mesa az.

Too little or too much refrigerant

If the refrigerant level in your system is not optimal, it can cause excessive pressure or strain that could lead to compressor failure. A low level of refrigerant can be caused by a lack of charge from the previous technician or a refrigerant leaking. 

Leakage is an immediate problem and should be addressed immediately. Your compressor will not work as hard to transfer enough refrigerant to the entire system. This extra strain could lead to failure.

If there is too much refrigerant in your system, which can only happen if a non-qualified technician or amateur charges it correctly, it can cause too much pressure and lead to your compressor's early death.

Coils that are dirty or frozen

Two sets of coils help to transfer heat through the AC system. The refrigerant can flow backward into the compressor if one or both of these coils fail to function correctly. This is known as a breakdown.

The evaporator coil may freeze due to many reasons. It will not be able to absorb heat. If you have frozen coils, turn off your AC and let it thaw. Don't try to remove it! Call a professional AC repairing team to diagnose the problem.

It's not surprising that the condenser coil is outdoors. This means that it can become covered with dirt and dust. This can lead to overheating as the coil cannot disperse its collected heat.


The compressor is not designed to compress any refrigerant that is in its gaseous form. It can break if it attempts to pump any other substance. Oil pump failures and leakage can cause oil to get in places it shouldn't. This can lead to contamination of your compressor. Air, dirt, and moisture are all potential contaminants to your compressor. For example, moisture can cause rust to mix with the refrigerant, which can lead to problems in the compressor.