If the fan motor stops spinning, you can take the following steps to repair it:
1. Check the power supply:
Make sure there are no problems with the electrical outlet and power cord.
2. Check the motor:
Check the fan motor for any odor, heat, or obvious signs of damage. If the motor fails, it needs to be replaced with a new one.
3. Check the blades:
Check the fan blades for debris or dirt, and clean or repair the blades.
4. Check the circuit board:
If the circuit board is faulty or damaged, it will also prevent the fan motor from rotating properly. At this time, you need to check the circuit board for signs of burning, corrosion or damage, and find professional technicians to repair or replace the circuit board.