What is the reason for the Jetta AC light not turning on and the air conditioner not working?
1 Answers
Jetta AC light not turning on and no air conditioning is due to the power fuse of the air conditioning switch being broken, which does not send a signal to the vehicle's compressor, naturally preventing it from cooling. Replace the AC fuse located in the engine compartment fuse box. Definition of the AC switch: Simply put, the car AC switch is the cooling switch for the air conditioner. AC stands for "Air-conditioning," meaning air conditioning device. This button controls the opening and closing of the compressor, and the car air conditioner's cooling function relies on the operation of the compressor. How AC works: After turning on the air conditioner's fan, the air conditioner will blow air because the blower in the air conditioning system starts working, so there is air blowing out. However, the cooling system of the air conditioner has not yet started because the air conditioning compressor has not begun to work. After turning on the AC switch, the vehicle's computer receives the signal from the AC switch, and then the vehicle's computer sends a signal to the air conditioning compressor. The air conditioning compressor starts working upon receiving the command, and only then does the car air conditioner's cooling function begin to work.
