
The reasons why the car air conditioning blower is not working are: 1. Poor contact of the main control switch; 2. Damage to the fan motor coil; 3. Loose fastening screw between the fan motor and the blade; 4. Open or short circuit of the fan capacitor. The solutions for a non-working air conditioning blower are: 1. Use a multimeter to measure the contact resistance of the main control switch, and replace the main control switch or fan motor coil; 2. Tighten the fastening screw; 3. Inspect the capacitor and replace it with one of the same specifications. Maintenance methods for car air conditioning include: 1. Regularly clean the surfaces of the condenser and evaporator; 2. Pay attention to the operation of the compressor; 3. Close the external circulation when there is a lot of dust in the air to reduce pollution of the air filter; 4. Regularly clean the air ducts and replace the air filter to keep the air inside the car fresh.


