why is my ac in my car blowing hot air on one side

This issue strains your air conditioner and can cause an AC to blow warm air. If its hot in a situation of car air conditioner blowing hot air then its an engine problem.


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What happens is this.

. This situation can be caused by a bad blend door also called air mix actuator a broken or binding blendair mix door broken linkage to the blendair mix door or a faulty HVAC control head or wiring harness. The most common causes behind an air conditioner blowing hot air on only one side will be a bad actuator electrical issues device settings battery issues or refrigerant issues. Even well experienced car mechanics may be surprised to learn that as little as 4 to 8 ounces undercharged of.

Virginia Tire Auto. Sometimes it changes sides 11 Answers. Dirty Air Filters When the cooling systems filter is dirty the air conditioner cannot properly move air through the system.

The other possibility is that you have a temperature control door actuator that is malfunctioning. First either the refrigerant is unable to absorb the heat from the car interiors. Blend door actuators are the most common reason for the car air conditioning to blow cold air on one side and hot air on the other.

Your car AC is actually a heat exchanger that recirculates warm air from inside the cabin and replaces it with cold air. If the existing air filter is dirty replace it with a new clean filter to see if the warm air issue resolves. If the actuator is clicking this is another sign it will probably need to be replaced.

Due to the design of dual AC systems low refrigerant is the leading cause of drastic temperature difference from one side of the dash to the other. Refrigerant thats in a liquid state makes its way to the evaporator where it boils as warm air from the cabin flows across it. It will lead to the AC unit blowing hot air.

They can be diagnosed with an advanced scan tool. FAQs qnadmin December 25 2021. When youre driving the fan is cooling the refrigerant inside the condenser and at idle it isnt getting sufficient airflow for cooling.

Over time small parts in the AC wear down or are damaged causing leaks in the system. This typically happens if the engine is too hot so be sure to check the engine temperature. In a vehicle with dual temperature controls you may encounter a situation where the vent blows cold one side hot on other side or vice versa.

Some of these can be fixed easily whereas others will likely need the services of a mechanic. As crazy as it sounds I have had a low refrigerant charge in the ac system as a cause of this so it may just be that your ac needs to be recharged. Based on your description it is possible that a faulty condenser fan is causing the air to blow warm at idle and could also explain why the vehicle starts to overheat.

It may be broken and not allowing the door that controls the temperature on that side to adjust the temperature as it. First the air conditioner may not be the problem. Other possibilities include a faulty compressor broken cooling fans or an issue in your electrical system.

Thankfully in this guide we will review each of these car AC problems in detail. Sometimes its okay blows both sides cold and it never does both sides hot. Blend door actuators are the most common reason for the car air conditioning to blow cold air on one side and hot air on the other.

Some cars have a shut off feature that will disengage the ac compressor if your engine is under duress. The reason it blows hot air on one side may be because of low refrigerant levels or because of HVAC door issue. My ac will blow very hot on one side one day but plenty cold on the other side then switch sides the next day.

The most common cause of an AC system blowing warm air is a lack of refrigerant though you may also have a problem with your condenser. It is also possible that the problem could be with your refrigerant or lack of it. You may require to take it to a mechanic to fix the issue.

Why is My Car Air Conditioner Not Working. In case your air conditioning condenser is blocked by some kind of debris driving on the road it wont be able to cool the refrigerant properly and your car will continue to work with overheated coolant. If it does not move with the adjustments and commands there is a problem with the blend door actuator and it will need to be replaced.

So there are two possibilities why AC doesnt work. AC blows hot air one one side. They can be diagnosed with an advanced scan tool.

The best lemon law attorney talks about Why does my car blow hot air on one side and cold on the other We lemon law attorneys offer a free legal consultation about Why does my car blow hot air on one side and cold on the other We know how tough it can be to have a defective or problematic car truck motorcycle or appliance. In most cases its due to a loss of refrigerant in the system. One reason for a car AC blowing hot air is a refrigerant leak.


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