What Causes a Car's Air Conditioning to Have No Warm Air?

1 Answers
SanRebecca
07/30/25 1:15am
The reasons why a car's air conditioning has no warm air are as follows: 1. The engine thermostat fails; 2. The hot water valve or its vacuum actuator fails; 3. The heater inlet or outlet pipes are blocked, or the heater core is clogged with deposits; 4. The temperature control damper or its control cable is damaged; 5. The air conditioning blower is damaged or its control circuit malfunctions; 6. The air conditioning air distribution ducts are blocked or leaking. More related information is as follows: Car air conditioning refers to the air conditioning device installed in a car, which can cool, heat, ventilate, and purify the air inside the cabin, providing a comfortable riding environment for passengers, reducing driver fatigue, and improving driving safety.
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