How Does An Air Conditioner Compressor Work? 4 Surprising Functions!

How does an air conditioner compressor work? The role of an air conditioner compressor is to compress all the gaseous refrigerants. Moreover, it increases the pressure and temperature inside the air conditioner.

However, what is an air conditioner compressor? The element in your air conditioner unit that boosts the pressure and temperature of the gaseous coolant that exits the evaporator coil is called the air conditioner compressor.

how does an air conditioner compressor work

A compressor needs to energize the pressure of the refrigerant to generate a differential pressure. The compressor needs to boost the pressure of the refrigerant to generate a differential pressure.  Fluids with a higher pressure travel onto fluids with lower pressure.

Generally, the air conditioner compressor raises the pressure present in the refrigerant to pass to the relatively low-pressure coolant inside the evaporator coil.


How Does Your Air Conditioner Compressor Works?

You can usually locate the air conditioner compressor inside the condenser coil/unit. It is the element that initiates the chain reaction, which makes the gaseous refrigerant or coolant cool.

The removal of heat happens when the air travels via the evaporator area at normal temperature. And the heat of the air travels to the vapor coolant and is then subsequently pumped into the compressor.

After that, the gaseous refrigerant is compressed, condensed into a liquid, and then ejected at pressure. A refrigerant is considerably warmer at this stage than when it before. The condenser coils dispensed the heat. The coolant is cool again by the moment it arrives at the end of the cycle. The evaporator coils are responsible for injecting those coolants.

This cycle will continue if you tend to on your air conditioner.  Some Heating, Ventilation, and Air Conditioning systems have compressors that negate the procedure, resulting in warm air rather than cold air. However, compressors also have specified work to do. So, to answer the question:

How does an air conditioner compressor work? Here are its other functions:


Function #1. Air transportation

Moving heat into the system is among the most critical tasks of your air conditioner.

First, the vent of an air conditioner begins sucking moist air into the device as long as the temperature climbs over the standard room temperature. Then, by forcing the moist air to enter the condenser coil, the compressor arrives.

The air conditioner compressor begins pumping the air to the condenser coil after the device captured it. It starts when the gaseous refrigerant converts the warm air into cold and breezy air you are accustomed to, resulting in cooler air.


Function #2. Removal of humidity

Besides transporting air, the air conditioner compressor also assists your device in removing humidity. Therefore, you may anticipate your room getting wet and soggy if it is not operating correctly.


Function #3. Compression of liquid

The air conditioner compressor accomplishes its duty of converting the hot air into fluid when your device captured it. It then passes through a compressor inlet, which helps to cool the hot liquid.

The next stage is for air conditioning liquids to reach the air conditioner compressor as a low-pressure gas.

If your air conditioner compressor fails, the fluid will not digest properly, leading to hot air output even when you use the cold option.


Function #4.  Hot refrigerated gas removal and condensation ‍

In your air conditioner, the air conditioner compressor is also in charge of extracting and compressing hot, chilled gases, allowing it to operate at a considerably greater temperature and pressure.


Since you already know the fundamental tasks of air conditioner compressors, let me introduce some of the most typical issues and warning signals.

Here are the following to look out for:


Sign #1. Your air conditioner is not working

If your air conditioner is not producing cold air, it is a sign that you need to replace or repair your compressor. Contact an air conditioning specialist as soon as possible.


Sign #2. The compressor motor is not turning on

After several trials and your air conditioner motor is not working, it is the moment to think about whether there is an issue with the start capacitor.

If your device does not have a compressor motor, I suggest that you must install one.

But, if your air conditioner has one and is still having problems, the next thing you need to do is to contact an air conditioning professional who will inspect it and recommend the required repairs or replacements.


Sign #3. The air conditioner is turning on and off

If your air conditioner is switching on and off, it might be a signal that you have a broken compressor. The blown a fuse or a damaged wire might be the source of the problem.

If your device begins to misbehave by repeatedly switching on and off, I advise that you check the switch and wiring immediately. But, if the issue continues after doing all feasible troubleshooting procedures, call a professional air conditioning specialist.

They will help you solve the issue. However, if you tend to neglect this problem, you may have a high electricity bill.



Again, the work of a compressor is to ensure that the air released by the air conditioner is cold. It has a lot of functions including, air transportations, compression of liquid, and gas removal.

Moreover, there are problems you can encounter with compressors. Again, call an expert to help you.

And, that is all for the topic: how does an air conditioner compressor work?

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