4 Ways to Troubleshoot an AC Compressor

Compressors are essential to air conditioning systems. They allow customers to enjoy the comfort and convenience of cool air, even during hot and humid weather when they need the respite of the summer the most. However, your customers’ compressors can develop faults that will inevitably cause the breakdown of the entire system.

AC Compressor

Compressors are often thought of as the heart of an air conditioning system because they perform several vastly important functions that serve to contribute to the crisp, cool air they provide. That’s why it’s helpful to understand how compressors work and what types of faults they can develop, so customers can take quick action if they observe any problems.

And where better for your customers to find this kind of information than from their resident professional air conditioner contractor? It’s up to you to provide all the required explanations to your customer base and advise them on how to adequately troubleshoot their compressor in order to know when it’s time to call you up for a repair or replacement.

What Is The Role Of The Compressor?

Compressors are among the essential components present in air conditioning systems, and if they choose to malfunction your customers are in for a very rough time. They perform some of the most important functions in your customer’s AC, such as refrigerant circulation, air transfer, maintaining pressure levels, and others:

Air Transfer

The first and the most vital function of the compressor is to help with transferring heating into the air conditioning system. The compressor serves to push the air in the direction of the condenser where it gets cool and ready to come into your customer’s office or home.

AC Compressor

Humidity Elimination

Besides transferring the air within the system, the compressor removes humidity from your customer’s homes or offices during the process of transferring it. One of the first signs of compressor failure is increased humidity in the space.

Liquid Compression

Finally, the compressor, as the name suggests, compresses the air into its liquid form and then moves it toward the expansion valve that’s in charge of cooling this liquid before sending it to the compressor again, but now in a different state.

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What Are The Frequent Compressor Issues?

The compressor is one of the most important parts of an AC system, and it is made up of many moving parts. This makes it prone to different kinds of malfunctions as it’s a complicated device where a lot can go wrong. Some common issues that can come from a faulty compressor include:

AC Compressor

No Cooling

If your customers notice that their air conditioning system isn’t operating properly or at full capacity, this is usually one of the first telltale signs of a malfunctioning compressor. From here, it’s either repair or replacement.

Rapid On & Off Operations

A compressor in a poor condition is also the most likely culprit in case your customer’s AC decides to abruptly turn on and then off non-stop. Not repairing the compressor promptly will result in higher-than-usual energy bills and in whole-system performance issues.


Sometimes, a bad compressor will cause the system to start overheating. However, this isn’t one of the most common problems that stem from the compressor, as some other causes of overheating include clogs, poor maintenance, and faulty wiring throughout the system.

AC Compressor

Worn-Out Compressor

Finally, your customers are likely to encounter a situation where the compressor is simply to worn out to operate properly. This is when it’s necessary to replace the component which is something your customers can easily prevent with proper maintenance and regular tune-ups of their system. Advise them that it’s better to nip the problem in the bud rather than allow it to develop.

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