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My Car’s AC Is Blowing Hot Air and it’s Hot Outside

Summer is here and the last thing you need is for your car’s AC to blow hot air through the vents. If it is, we here at Mueller’s Auto can help. There are a handful of reasons why your AC is blowing hot air, and we are going to list these reasons below alongside two other problems.

Damaged Condenser

When it comes to positioning inside the engine, the AC condenser drew the short straw. This air conditioning part is located directly behind the vehicle grille. What this means for it is that it gets pelted with a ton of road debris. This debris can damage the condenser. A damaged AC condenser will cause hot air to blow through your interior vents. The dirt and debris can also clog the condenser and you will end up with the same result.

Malfunctioning Compressor

Since this year is a summer Olympic year, it’s fun to compare the AC’s compressor to a triathlete. The compressor loves to work out. It thrives on being run all the time. If it doesn’t get run all the time, it will begin to malfunction. As you can imagine, if the compressor malfunctions, you will end up with hot air blowing out of your vents rather than cold air.

Low Refrigerant

Another thing that will make hot air blow out of the vents is low refrigerant levels. The refrigerant can leak without you even knowing it. It can leak at the hose connectors but it doesn’t leak enough to drip. It just creates a gel around the hose connectors. The refrigerant also evaporates over time, so if it’s been a while since you’ve had your vehicle’s AC check, you may just have low refrigerant.

Malfunctioning AC Fan

Another thing that can make your life miserable in the summer is if the air conditioner’s fan is malfunctioning. This can mean that you may not have any air blowing through the vents at all.

Electrical Problems

Finally, electrical problems can directly affect the air conditioner. Some people press the button to turn on the AC and nothing happens. In other cases, the air conditioning system may short-circuit and blow a fuse. If the electrical system is having a problem, it can directly affect the air conditioner.

Mueller’s Auto in Pueblo, CO, would be happy to inspect your car’s AC to determine why you are getting hot air blowing through the vents. Call us today for an appointment.

Photo by bizoo_n from Getty Images via Canva Pro
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