1. Maintenance method of range hood
1. What should I do if the automatic control board fails and the indicator light is not on? Generally, this kind of failure is due to insufficient cleaning and maintenance, and there is dirt on the sensor installed on the panel, which leads to the sensor being blocked. Remove the sensor, put the net cover into the cleaner and clean it with a brush. If not, adjust the potentiometer in the circuit to improve the sensitivity. If it doesn't work, the sensor is aging and needs to be replaced.
2. If the motor sometimes rotates, sometimes it does not. This failure should be caused by the following reasons: First, the moving contact of the switch is deformed, resulting in the separation of the moving and static contacts. Clean the moving contact with cleaning agent, then clamp the root of the moving contact with needle-nosed pliers for correction, restore elasticity and make the moving contact contact normally. The second is to find out the loose screw through the loose contact of the motor connector screw and tighten it again. Third, the motor joint is loose, find out the loose joint, reconnect it, weld it with tin if necessary, and wrap it with insulating tape.
3, the motor can rotate, the noise is loud, and the shell is very hot. Most of these faults are caused by serious oil shortage or wear of oil-bearing of motor rotor. First, remove the fan blades and gently shake the rotor shaft end by hand. At this time, there are two phenomena: first, it is not loose, it feels tight, and it is a serious oil shortage; Second, there is a loose phenomenon, and the feel gap is very large. This phenomenon is that the bearing is seriously worn and needs to be replaced with a new bearing.
Second, how to disassemble the range hood
(1) First, unscrew the cover plate and screws of the net cover, and remove the cover plate and the net cover.
(2) Then unscrew the fastening screw of the wind wheel and take out the wind wheel.
(3) Soak the removed parts in warm water containing detergent, clean them with a soft cloth and dry them.
Precautions:
(1) The gas discharged from the range hood cannot be discharged into the hot flue used to exhaust smoke when burning gas or other fuels, in case of fire.
(2) Never bake the hood directly with fire. The room must be well ventilated.
(3) Safe power sockets must be used.
(4) If the power cord is damaged, it must be replaced with a special cord or special parts purchased by a special maintenance department.
(5) If it is not cleaned according to the instructions, the oil fume may be in danger of futures.
(6) Be sure to unplug the power supply before changing the lamp, and the power of each bulb should not be greater than 20W.
(7) When cleaning, please put on gloves to prevent the parts from hurting people, and the removed parts must be handled with care to avoid damage.
(8) Unplug the power cord when it is not used for a long time. So as to avoid fire and unnecessary injury caused by electric leakage.
The above is the maintenance method and disassembly method of the range hood. After reading what I introduced to you, do you know more about the disassembly and maintenance of range hoods? I hope I can help you.