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Why Is My A/C Blowing Warm Air?

It seems like it is one of THOSE summers in Burnaby, where the heat kicks up in August. If you have to crank the A/C on blast every time you get into your car, you expect nice and cool air in return. But if it is not cooling you down, it means you have an auto A/C problem. 


There are 5 potential explanations for why your car’s air conditioning is blowing warm or hot air. Read on to learn more:

Low or Leaking Refrigerant

Your vehicle’s A/C relies on this substance to cool your cabin as it expands and condenses. Refrigerants should be sealed and airtight so that your car’s A/C can run optimally. If there is a leak in the system, your air conditioning will not feel cold. And you will need to repair the leak and have a professional top you off on the correct refrigerant.

Electrical Problem

The A/C system is electrically powered, meaning that every arrangement of fuses, relays, switches, and battery charge matters. If there is a fault in the electrical system, it may trigger your A/C to blow the incorrect temperature of air.

Bad Condenser

The condenser is a vital component in the A/C system, and it is responsible for transforming the air to be cool. Often, the condenser is prone to blockages and breakages when there is a buildup of contaminants in the system. 

Worn Compressor

The compressor pressurizes the refrigerant solution and circulates it through hoses and tubes in the system. This part is vulnerable to wear and tear, but it can also fail from extended periods of inactivity. If your compressor is failing, it may put your car at risk of overheating.

Clogged Air Filter

Last but not least, most cars have an air filter that drivers often forget about. Just like the air filter you have at home, the vehicle’s air filter tends to get dusty and clogged over time. Therefore, it is essential to replace it regularly to promote better air flow.


If your car’s air conditioning system is not working properly, please do not hesitate to bring your vehicle to the experts at Nixon Automotive. The A/C system is complex, and our experienced technicians are equipped to handle all your HVAC problems.

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