Firstly, the fault detection methods of vacuum cleaners are introduced

In vacuum cleaner fault detection, common methods include observation, listening, smelling, questioning and testing, which can help us quickly locate the fault location.

1. Observation

The main check valve vacuum cleaner parts are firmly fixed, the brushes are badly worn,cordless vacuum cleaner supplier the vacuum port and exhaust port are blocked, etc.

2. Listening

By listening to the vacuum cleaner running whether there are abnormal sounds, such as collision sound, bearing damage sound or the sound of blade rubbing the shell.zek vacuum If you inhale hard objects, it will make specific abnormal sounds. At this point, you should immediately turn off the machine and remove the foreign object. If the air ducts are clogged, it will make a dull noise that needs to be cleared immediately.

3. Smell

Smell if there is a burning odor when the machine and equipment are running, this may appear to mean that an economic overheating has occurred somewhere or a short circuit has been carried out.

4. Ask

Ask the user about the usage of the vacuum cleaner and any signs before it fails.

5. Measure

If none of the above methods reveal a problem, you can use a tool such as a multimeter to test the motor and other related parts.

Common Vacuum Cleaner Failures and Repairs

(1) Overhaul of vacuum cleaner with reduced suction power

Firstly, we carry out check whether the dust collection chamber and filter are full of dust, and whether there is any blockage in the accessory pipeline enterprise.wireless handheld vacuum cleaner for car If we these are normal, and then check whether the fan impeller is loose, whether the armature can be reversed, and whether the working power supply voltage can be normal and so on.

(2) maintenance of abnormal noise in operation.

Check whether the dust collector is damaged, whether the fan impeller is tightened, whether the brush spring pressure is enough, and whether the motor lubrication is good.

(3) Maintenance of non-starting after startup

Start checking from the power cord, then to the power fuse, on/off switch, and the contact between brush and commutator.

(4) Maintenance of the circuit passes but cannot run the starting system

Check whether the dust collector is damaged, whether the motor bearing is damaged, whether the brush position is correct, whether the stator winding is short-circuited or damped, etc.

(5) Repair of motor does not turn after energized.

Usually the first thing to check is the welding of the power switch, fuse tube, power reel or connector. If these are normal, the internal motor may be disconnected or have poor contact.

(6) Overhaul of motor overheating during operation

Check whether there is too much dust accumulated in the dust collection cavity, whether the air duct can be smooth, whether the air inlet is too small, or whether the enterprise is through the inhalation of wet dust and so on.

(7) Overhaul of rising temperature of exhaust air from the air outlet

Check whether the power supply voltage is too high, whether the vacuum cleaner accessory piping is blocked, whether the dust collection chamber and filter holes are blocked.

Third, maintenance precautions of vacuum cleaner

1. Unplug the power supply during maintenance to avoid pulling the power cord.

2. Check whether there is any damage between the power cords and make sure the cords are connected firmly.

3. Turn off the power as soon as you notice a burning odor or loud noise.

4. Make sure the dust collection bag is installed correctly.

5. Check and replace seals to prevent damage caused by hard disassembly and assembly.

6. If the fuse tube blows, be sure to find out the cause and repair it before replacing it with a fuse tube of the same size.

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