1. The overload protector or safety tube is burnt out. If the overload protector or safety tube is damaged, please replace it. The problem of loose power plug socket or broken wiring is simple. You can check whether the power indicator light flashes smoothly. If you turn it off and on for a while, it means that the power circuit is loose.
2. Looseness problems also include loose screws of motor wiring device, loose power cord and loose motor connector. , must be disassembled for inspection. The moving contact of piano key power switch is deformed, resulting in emotional sound contact. Clean the moving contact with cleaning solution, and then clamp the root of the moving contact with needle-nosed pliers to correct it, repair the ductility and make all intact contacts contact normally.
3. The centrifugal impeller of the cooling fan is not very good. Check the centrifugal impeller of the cooling fan. If it is deformed together with the arc-shaped main control board, adjust the gap between the centrifugal impeller of the cooling fan and the arc-shaped board or replace the centrifugal impeller of the cooling fan. The motor bearing is damaged, which causes the motor rotor of the motor to collide and get stuck. At this time, the rolling bearing should be replaced. Check whether the starting capacitor of the motor is damaged. If damaged, please replace it.
4. The range hood is a single-phase capacitance induction motor, which has non-rotation failure, electrical equipment failure and mechanical equipment failure.
5. The range hood does not operate due to mechanical equipment failure, and the oil content of the rolling bearing is low under normal circumstances. Because the rolling bearing of the range hood is an oil bearing, the greasy smell released by cooking will block the micropore plate of the oil bearing, and the grease path will be disconnected. After a long time, the starting friction resistance will increase, and the motor will not turn when it is serious.
There are several reasons for the motor rotation of the range hood:
First of all, the moving contact of the key switch is deformed, which leads to a certain distance between the moving contact and the static contact.
Solution: Clean the moving contact with cleaning agent, and then clamp the root of the moving contact with needle-nosed pliers for correction, restore elasticity and make the moving contact normal.
Second: the motor connector screw is loose, which leads to poor wire contact.
Solution: Find loose screws and tighten them.
Third, the motor joint is loose.
Solution: Find out the loose joint, re-fasten it, weld it firmly if necessary, and wrap it with insulating tape.
Two methods are added to solve the common faults of pumping units;
1. When the switch is turned on, the fan does not rotate, but a buzz can be heard. This is because the bearing is damaged or worn, which causes the rotor and stator to collide. Or because the fastening screw of the impeller shaft sleeve is loose, the impeller comes out and collides with the casing.
At this point, the bearing needs to be replaced or the winding needs to be repaired. If the problem is not serious, adjust the impeller position and re-tighten the screws.
Press the button on the display screen, and the machine will not work.
This may be because the power supply is dead. Replace the power socket or wait until the voltage is normal. It is also possible that there is something wrong with the display screen or computer version, just replace the display screen. Or the power cord is short-circuited, replace the power cord.
Beijing, Tianjin, Guangzhou, Shanghai, Chongqing, Hefei, Anqing, Shenzhen, Zhuhai, Guilin, Harbin, Hangzhou, Shijiazhuang, Luoyang, Yueyang, Jinan, Changzhou, Kunshan, Nantong, Wuxi, Yangzhou, Nanchang, Shenyang, Nanjing, Fuzhou, Chengdu, Changsha, Zhengzhou, Suzhou, Nanning, xi 'an and Baoji.
Service outlets: the motor of the range hood buzzes, the schematic diagram of cleaning the range hood, the motor of the range hood lamp is not energized, the motor of the range hood is not energized, the motor of the range hood is not energized for a while, the motor of the range hood is not energized for a while, what is the reason why the motor of the range hood is not energized, and the capacitor of the range hood is broken? Who will repair it?