4hw.com.cn: it's too hot in summer. If it's sultry at home, you have to blow the air conditioner. If you're driving sultry, you have to blow the air conditioner. Air conditioning is absolutely indispensable in summer. But the most embarrassing thing is. When I want to turn on the air conditioner, I find that the fan of the car's air conditioner doesn't turn. What's the reason? Let's teach you how to solve it.
What's the reason why the air conditioner fan doesn't work
If the air conditioning fan of the car does not rotate, first check whether the compressor of the car air conditioning works normally. If it works normally, it means that it is the problem of the fan. If the compressor does not work, first check where the compressor is faulty.
What's wrong with the air conditioning compressor not working
1. Circuit system failure will cause the air conditioning compressor can not work normally. If this problem occurs, you can check whether the circuit is smooth and check whether the temperature sensor solenoid valve is normal.
2. The compressor is mainly used to compress and transport the cold air. If the compressor is not working, you can check whether the refrigerant leaks. When there is no cold air to compress or transport, the compressor will not work.
3. There is serious aging wear in the compressor, which makes the compressor unable to work normally. Because the compressor plays an important role in the air conditioning system, if the compressor is in the state of high-speed rotation for a long time, there will be more serious wear phenomenon, which is one of the reasons why the compressor can not work normally.
4. Due to the loose plug of the control circuit of the air conditioning compressor, the poor contact is caused, which makes the voltage of the supply solenoid drop and the current unstable, resulting in the electromagnetic clutch of the air conditioning compressor sometimes engaged and sometimes separated.
It's too hot in summer. When I want to turn on the air conditioner, I find that the fan of the car's air conditioner doesn't turn. What's the reason? Let's teach you how to solve it.
The working fan of automobile air conditioning compressor does not rotate
If the compressor is working and the fan is not rotating, it may be due to poor contact of the main control switch, damage of the fan motor coil, loose set screw between the fan motor and the fan blade, open circuit or short circuit of the fan capacitor. It may also be caused by the aging of the fan.
1. Poor contact of main control switch
Maintenance method: use a multimeter to measure the contact resistance of the main control switch. If the resistance is too large or zero, it indicates that the fault occurs and should be repaired or replaced immediately.
2. Fan motor coil damaged
Maintenance method: use a multimeter to measure the contact resistance of the main control switch. If the resistance is too large or zero, it means there is a fault.
3. Loose set screw between motor and blade of fan
Maintenance method: tighten the set screw.
4. Fan capacitor open circuit or short circuit
Maintenance method: check the capacitor and replace the capacitor of the same specification.
If none of the above methods can be repaired, go to the auto repair shop or 4S after-sales for detailed inspection and repair of air conditioner, which is generally free within the warranty period.