What causes the air conditioning to stop cooling after a vehicle goes through water?

[DiKhloe]

The reasons why the air conditioning stops cooling after a vehicle goes through water are as follows: 1. Air entering the vehicle's air conditioning system: This can cause excessive pressure in the refrigeration pipes or form ice blockages, leading to poor refrigerant circulation and resulting in no cooling. 2. Loose drive belt of the air conditioning compressor: During compressor operation, this can cause slipping, reducing transmission efficiency, slowing down the compressor speed, and causing compressor wear or valve leakage, which decreases the delivery of compressed refrigerant and directly reduces the cooling capacity of the air conditioning system or stops cooling altogether. 3. Low power supply or voltage: The electromagnetic clutch of the compressor will have reduced suction, and oil contamination between the clutch pressure plate and the pulley may occur, leading to a 'slipping' condition similar to a loose drive belt.