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What is the reason for the sudden failure of the Volvo S90 air conditioning to cool?

1 Answers

ClaireLynn

08/26/25 4:30am

Too much impurities and dust attached to the condenser, resulting in poor cooling effect. More information about the sudden failure of the air conditioning to cool while driving is as follows: 1. Evaporator icing: When the car is driving at high speed, the water temperature of the engine cooling circulation system is relatively low, and the cooling effect of the air conditioning condenser is enhanced, causing the temperature of the air conditioning evaporator to be even lower. This may lead to icing on the surface of the evaporator, blocking the air intake of the air conditioning and causing it to stop cooling, with reduced air volume. 2. Alternate use of internal and external circulation: When using the air conditioning during high-speed driving, it is advisable to alternate between internal and external circulation. On one hand, this can maintain fresh air inside the car, and on the other hand, it can prevent the air conditioning evaporator from icing and affecting cooling.

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