Is the air purifier common fault car type useful?Car Air purifier Processing

　　Common failures of air purifiers are generally fuse of the power supply or failure of the high-voltage generating circuit. It is necessary to disassemble the electrical inspection to know the specific problem. You can check according to the following steps. The following operations can only be performed on the basis of disconnecting the power supply.

　　1. Check whether the fuse is fused, if it is broken, check the original air purifier before replacing it.

　　2. Check whether the coil of the step-up transformer is burnt out. Use a multimeter to measure its resistance. If the coil is open or short-circuited, replace the transformer of the same model.

　　3. Check whether the rectifier tube and capacitor of the voltage doubler rectifier circuit are damaged, and whether the oscillator has stopped shaking. Use a multimeter to test the relevant components one by one on the air duct purification device. Replace the burned-out component to eliminate the fault.

　　Fault 2: The high-voltage indicator light is on, but the fan does not rotate, and the high-voltage indicator light is on, indicating that the circuits generated by the high voltage of the power supply are normal, and the fan may be faulty. You can check from the following aspects whether the fan blade is stuck by foreign matter and whether the bearing is severely worn. If the air duct purifier is normal, check whether the motor lead wire is open and whether the winding is damaged. It can be measured with a multimeter. If the winding is open or broken, the fan motor of the same specification should be replaced. If it is a negative ion air purifier, the following failures may also occur

　　Fault 3: Fire between the negative ion generator poles, check whether the humidity of the ambient air conditioning box is too high, or it may be caused by the bending and deformation of the positive and negative plates. Use tweezers to correct the pole piece. If it is still on fire, move the air purifier to a dry place for trial use. Generally, the fault can be eliminated.

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