A motor that is hot to the touch or smells like ozone is a major safety red flag.
Replacing a motor is often a relatively affordable fix, but it’s not always the smartest one. Ceiling Fan Troubleshooting - The Home Depot
The Ultimate Guide to Buying a Ceiling Fan Motor: Repair vs. Replace
Inconsistent speeds or stuttering rotations suggest internal mechanical failure. Should You Buy a Motor or a New Fan?