Your AC unit’s compressor is an essential part of its cooling systems. It plays a vital role in the cooling process and makes sure that your unit maintains a long and healthy shelf life. To keep your compressor fit and usable, you need to understand an overview of its placement, function, and maintenance to help you in identifying its repair needs.


Understanding the function of compressors

Your compressor is exposed on the exterior of your air conditioning unit, appearing outside your home. It’s connected to other components, such as the condenser, fan, and condenser coil. These outdoor components connect to your AC unit’s indoor system through a copper refrigerant tube. These two different parts work together in transforming the air inside into cold air while expelling the excess heat outside.

An air conditioner pulls out the air inside your home, which then cools around the unit’s evaporator coil to be released as cold air back inside your rooms. The evaporator coil maintains freezing temperatures due to the liquid refrigerant that takes in hot air to change it into gas. It’s then delivered outside to the unit’s condenser coil to turn it into a liquid. The cycle repeats itself in converting warm air into cold byproducts.

The compressor’s role in this process is to transfer the refrigerant between the condenser coils and evaporator. It makes sure that there’s a balance to the changes in the volume of gas or liquid. Your AC unit’s compressor regulates the flow of refrigerant throughout your system to ensure that it can handle the overall performance of your unit, depending on how hot or how cold the surrounding temperatures are.


Interpreting potential cause of compressor damage

If your unit has been generating odd noises, insufficient cooling, or prolonged starting times, you may need to have your compressor checked. Compressor malfunctions occur due to a wide variety of reasons. Its effects can often show you what type of damage your compressor has.

If you notice banging or clanking sounds while your AC unit is operating, it may be an indicator of loose parts inside the compressor. On the other hand, hissing noises indicate that you have a refrigerant leak.

If your unit isn’t performing at its best by providing minimal cooling effects, it may also be a sign of loose or worn out compressor parts.

If your unit takes too long to turn on or off, you may be experiencing an electrical issue with the amount of power the unit receives.


Dealing with compressor maintenance

Compressor maintenance is a necessary measure for AC unit owners to make sure that their cooling systems won’t build up minor damages overtime. However, it’s recommended that you don’t perform a DIY assessment of your unit since you can do more harm than good if you don’t have the right training to handle it.

It is best to seek out a professional HVAC technician annually to check your AC unit’s overall system, especially the compressor. That allows you to avoid running into issues, such as electrical problems due to the state of your compressor pads.



Although you can use the signs mentioned above to deduce that you have a compressor issue, you should always consult with a professional HVAC technician to properly assess the unit. Repairs for compressors is possible. However, depending on the severity of the damage and your unit’s age, you may need to replace your entire HVAC system. As a homeowner, you need to gauge your financial options on whether it’s better to replace your unit or maintain it regularly with part replacements.

If you’re a homeowner in Ottawa who needs heavy-duty HVAC parts to replace your unit’s damaged components, check out our online catalogue of products. We offer A/C compressors for both residential AC units and mobile HVAC units! Contact us today!

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