The old Haval H5 electric fan rotates at high speed, the bottom speed does not rotate, how normal is

This situation is due to the aging of the fan, and both the electric fan and the coupling fan need to be replaced.

This may be due to a broken starting capacitor of the fan.

Change the starting capacitor and it will probably be normal.

If the fan blades are rotated flexibly, it is mostly caused by the decrease in capacitance capacity, and the new capacitor of the same capacity should be replaced; If there is resistance to the speed of the blades, it means that the motor bearing is poorly lubricated, and it should be cleaned and filled with lubricating oil.

If the fan motor is very hot, it means that the motor bearing is short of oil, and the bearing needs to be disassembled and cleaned to completely solve the problem (not necessarily that there is no problem in the high-speed gear, but the torque in the high-speed gear is large, and the speed is not significantly reduced).

Maybe the capacitor or the motor shaft is out of oil, just check it out.

The low-speed coil of the motor is broken, and the motor is thirty dollars.

If the capacitor is broken, just buy a new one and replace it.

Hello, according to your fault description the problem should be an electronic fan problem, in order to further confirm whether it is a fan problem; You can raise the car and wait until the water temperature is high to pull out the fan plug and use a multimeter to measure whether the fan high-speed stop pin has electricity, if there is a problem with the fan motor, it needs to be replaced, I hope my answer can help you, if you have a condensation you can consult again, I wish you a happy car, thank you!

Hello, it is caused by the serious wear of the carbon brush in the internal structure of the fan, it is recommended that you replace the fan motor!

Hello, if you knock on the fan to turn, it should be a problem with the fan, the carbon brush inside is too short, I hope it can help you.

Hello! According to your description, it should be that the fan motor is broken. Replacement is recommended.

Hello, it's the fault of the fan, it should be that the fan carbon brush is broken, you need to replace the fan, you can also directly, power the fan to see if there is a high-speed rotation or low-speed rotation, if there is anything you don't understand? Car Master is here for you!

If the fan is broken, you can replace it.

The fan itself is faulty, it is recommended to replace it!

Remove the CPU, and then install it, the memory module is also processed, see if it can start, if not, consider changing the CPU to try.

If there is no alarm sound, it is a problem with the motherboard, or a problem with the power supply. Let's see if we change the power supply first.

The computer fan is spinning at a high speed (three fans in my computer are spinning at the same time), and the noise makes me nervous, and I am afraid that the computer will explode. I tried all the recommended methods of the above netizens, but it didn't work. In desperation, I reinstalled the system, hey!

Everything is back to normal, I guess it's a software problem, or a virus.

It should be that the memory test does not pass, try to reseat the memory. Or replace a slot.

It could be a problem with the following aspects:

1. The system software is damaged by a virus. Kill the virus and reinstall it and you can solve it.

Second, the plug-in of the motherboard is loose. Double-check and plug it in securely, especially the memory module and CPU fan.

3. The exhaust outlet of the fan is blocked, and the CPU works at high temperatures. Wash or replace the fan.

Turned off the fan and turned ??? Could it be an induction cooker??? I haven't encountered this problem, but if you just turn on the fan, it's normal to turn around like crazy, and the general brand machine is like that.

Will it turn on automatically when it is turned? Wash the motherboard, wash the motherboard and dry it, clear the CMOS settings, and then turn on the computer and set it up again.

There is a program running in the background, just turn it off and open it again.

If you feel that something is wrong, it is recommended to find a nearby master to take a look.

Fan problem, the 3-pin fan does not have the temperature control adjustment function, so it has been rotating at high speed, plus the fan you bought has a high speed, so it is very noisy, you should buy a four-pin temperature control fan, there is an adjustment function, and the fan speed is adjusted according to the CPU temperature