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What is the reason for the electric fan not working when the air conditioning is turned on in the Volkswagen Tiguan?

1 Answers

JuniperLynn

07/29/25 9:52pm

If the electric fan of the Volkswagen Tiguan's air conditioning does not rotate, it is likely due to damage to the fan motor coil. Reasons for the electric fan not working: The contact resistance of the main control switch is poor or there is poor contact, the capacitor of the fan is open or short-circuited, the fixing screws between the motor and the fan blade are loose, and the electric fan of the air conditioning does not rotate. Solutions: The driver can use a multimeter to measure the contact resistance of the main control switch; if the resistance is zero or too high, the driver should replace or repair it as soon as possible. The driver should check the capacitor and replace it with one of the same specifications. If the fixing screws between the motor and the fan blade are loose and the electric fan of the air conditioning does not rotate, the driver should tighten the screws. The high and low speeds of the electric fan are only controlled by the thermal switch (F18). The thermal switch has two positions and is installed on the water tank to detect the water temperature. It provides two signals to J293, which then connects different open circuits to control the high and low speeds of the electric fan. When the air conditioning is turned on, both fans must rotate.

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