Your car’s A/C system is made up of a compressor, condenser, evaporator, cabin air filter, and refrigerant. All these components work together to remove heat and moisture from your cabin, before releasing it to the outside. If one component fails, additional strain is placed on the entire system, and your A/C can’t blow as cold as it used to.

The compressor pressurizes the refrigerant and pushes it through the system. It is essentially the engine of the entire process. The condenser then releases the heat the refrigerant has absorbed, cooling it back down before it cycles through again.

The evaporator sits behind the dashboard in the HVAC (heating ventilation air conditioning) housing. As air is blown over it, the refrigerant inside absorbs heat from the cabin air, and cooled air flows through your vents.

The cabin air filter, often found behind the glove box, helps to trap dust, pollen, and debris before they reach the evaporator and blower. An old or clogged filter can restrict airflow, making the system work harder, and can contribute to a musty odour when the A/C is on.

Refrigerant is a chemical that moves through your A/C system in a closed loop, carrying heat away from the cabin. Handling is regulated and must be completed by a certified professional, since it can be a safety and environmental hazard. Not all refrigerants are the same, and your automotive technician will know which one to use for your vehicle.

Professional A/C service ensures the safe handling of materials and that all A/C components are working.

Over time, small leaks or worn seals can cause refrigerant levels to drop, and a compressor running low on refrigerant is a compressor running dry. If this issue is ignored for an extended period, it can damage the compressor, leading to an expensive repair.

Regular A/C inspection can catch and resolve leaks early, before they become a costly compressor replacement.

An A/C service needs to be left to the professionals because it requires specialized equipment that isn’t available to the public, including vacuum pumps, refrigerant recovery machines, and leak detectors.

There are also environmental regulations that govern how refrigerant is handled and disposed of. Improper handling carries legal risk and poses a hazard to the environment.

Your A/C system is highly complex and only a licensed technician can correctly identify what options you have to get the cool breeze in your cabin again. NAPA AUTOPRO technicians have the training and equipment to inspect the entire system so you leave with an A/C that’s been properly repaired and serviced.

To stay on top of potential refrigerant leaks and ensure that all A/C components are in the best shape possible, book a regular vehicle service and A/C inspection every one to two years. Wondering if your air conditioning is still running as well as it did in previous years? A simple trick is to wait two minutes after turning the A/C on. If cold air still isn’t blowing from the vents, it’s time for a professional inspection.

Your A/C works in every season. In summer, it manages heat and humidity. Canadian conditions, including stop-and-go driving and high humidity, can strain the system. In the fall and winter, it’s just as important. Running your A/C on defrost mode clears your windshield in cold, damp conditions, and keeps the compressor lubricated year round.

If you can’t remember your last A/C service, then it’s probably time to book one. Trust your NAPA AUTOPRO certified technician to expertly inspect your air conditioning before small issues turn into costly repairs. Find your nearest NAPA AUTOPRO service centre and book your appointment today at napaautopro.com.