Do you understand the four common faults of air purifiers?portable air purifier sales

　　Fault 1: The high-voltage indicator does not light up, and the fan does not rotate

　　Generally, the power fuse is blown or the high-voltage generating circuit is faulty. 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, find out the cause 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 stops shaking. Use a multimeter to test the relevant components one by one. Replace the burned-out component to eliminate the fault.

　　Fault 2: The high-voltage indicator light is on, but the fan does not rotate

　　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 there is no abnormality, check whether the motor leads are open and whether the windings are damaged. Available multimeter

　　Measure, if the winding is open or disconnected, replace the fan motor with the same specification. If it is a negative ion air purifier, the following failures may also occur

　　Have you mastered the four main maintenance methods of air purifiers?

　　1. The front filter is generally the back cover of the chassis, which will deposit some dust and affect the air intake. Affect the effect of air purification. Generally, it is cleaned 1-2 times a month. You can use a vacuum cleaner to clean the dust, or you can use a rag or brush to clean it. If the manufacturer indicates that it can be washed with water, it must be dried before being installed in an air purifier.

　　2. Some filters need to be exposed to the sun regularly, so that the purification efficiency can be better maintained. For example, the activated carbon filter can be exposed to the sun for more than 24 hours in half a year to restore the activity of the activated carbon itself.

　　3. Deodorizing filter: The deodorizing filter of a few brands of air purifiers has reached the technical level of washing. It can maintain the purification efficiency by washing with water, shorten the cycle of filter replacement, and can also be cleaned with a vacuum cleaner.

　　4. Ionizer: Generally, it is built-in and does not need to be cleaned. Better ionizers have higher working efficiency.

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