How to repair a fan
Fans are commonly used electrical appliances in summer, but they may malfunction after long-term use. This article will combine the hot topics and hot content on the Internet in the past 10 days to provide you with a detailed fan repair guide to help you solve the problem quickly.
1. Common fan failures and solutions

The following are the fan failures and solutions that have been discussed most recently by netizens:
| Fault phenomenon | Possible reasons | Solution |
|---|---|---|
| The fan does not rotate | Power supply problem, motor damage, capacitor failure | Check the power cord, replace the capacitor or motor |
| The fan is noisy | Bearings are short of oil, fan blades are deformed, and screws are loose. | Add lubricating oil, adjust fan blades, and tighten screws |
| Fan speed is slow | Capacitor aging, voltage instability, motor problems | Replace capacitors, check voltage, and repair motors |
| Fan shaking head fails | Gear wear, connecting rod breakage, motor failure | Replace gears or connecting rods and check the oscillating motor |
2. Preparation of fan maintenance tools
Before repairing the fan, you need to prepare the following tools:
| Tool name | use |
|---|---|
| screwdriver | Remove the fan housing |
| multimeter | Detect circuit continuity |
| lubricating oil | Lubricate bearings |
| pliers | Fix or adjust parts |
3. Detailed explanation of fan maintenance steps
1. Repair steps for fans not spinning
(1) Check the power supply: Make sure the plug is in good contact and the power switch is turned on.
(2) Test capacitor: Use a multimeter to check whether the capacitor is damaged. If damaged, replace the capacitor of the same model.
(3) Check the motor: If the capacitor is normal, it may be a motor problem and the motor needs to be disassembled for inspection or replacement.
2. Repair steps for loud fan noise
(1) Clean the fan blades: Remove dust or foreign matter on the fan blades.
(2) Lubricate bearings: add lubricating oil to the motor bearings.
(3) Check screws: Make sure all fixing screws are not loose.
3. Repair steps for slow fan speed
(1) Replace the capacitor: The aging of the capacitor will cause the rotation speed to slow down. Just replace the capacitor with a new one.
(2) Check the voltage: Make sure the home voltage is stable to avoid low voltage affecting the fan speed.
4. Recent popular fan maintenance issues
According to the discussion data across the Internet, the following are the fan maintenance issues that netizens are most concerned about in the past 10 days:
| Ranking | question | Discussion popularity |
|---|---|---|
| 1 | The fan is not running but the light is on | high |
| 2 | How to solve abnormal fan noise | middle |
| 3 | Fan remote control failure | middle |
5. Maintenance precautions
(1) Power-off operation: Be sure to unplug the power supply before maintenance to avoid electric shock.
(2) Accessory matching: When replacing capacitors or motors, the same model must be selected.
(3) Safety first: If the problem is complicated, it is recommended to contact professional maintenance personnel.
Conclusion
By following the steps above, you can easily resolve most fan failures. If the problem cannot be solved by yourself, it is recommended to seek professional help in time. I hope this article can provide you with practical repair reference!
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