What Causes a Car Air Conditioner Not to Cool When the Pressure is Normal?
1 Answers
When the air outlet is functioning normally and the compressor is working properly, the reasons why a car air conditioner fails to cool are as follows: 1. Lack of refrigerant: Car air conditioners typically require refrigerant replenishment every 2-3 years, with some vehicles needing it annually. Even if the air conditioning system is tightly sealed, refrigerant can still escape, especially if there are minor leaks in the air conditioning pipes or condenser. 2. Damaged air conditioning flap: The failure of the air conditioning flap motor is relatively rare but not unheard of. A malfunctioning flap motor is troublesome as it is usually located in the lower middle part of the dashboard, serving as the main switch for the air vents. If it fails, the switch is effectively broken, and even if the air conditioner can produce cold air, it can only escape through gaps, akin to quenching thirst with poison. 3. Dirty condenser: During summer, poor air conditioning performance is often noticed. When the air conditioning system is tested and found to be functioning normally with standard high and low pressures, car repair shops often recommend cleaning the radiator. The primary purpose of cleaning the radiator and condenser is to improve heat dissipation. Accumulation of springtime poplar and willow catkins on the condenser can lead to issues like excessively high engine temperatures or poor air conditioning performance.
