If the fan only starts spinning after you give the blades a push, the motor or its capacitor is failing.

Is your ceiling fan humming like a swarm of bees or spinning at a snail's pace? The motor—the "heart" of your fan—might be on its last legs. Before you rush out to buy a whole new fixture, you might be able to save money by simply replacing the motor.

Replacing a motor is often a relatively affordable fix, but it’s not always the smartest one. Ceiling Fan Troubleshooting - The Home Depot

This often indicates electrical strain or a dying motor.

Inconsistent speeds or stuttering rotations suggest internal mechanical failure. Should You Buy a Motor or a New Fan?

Before buying parts, confirm the motor is actually the problem. Look for these "cries for help":

This guide will help you decide whether to buy a new motor or replace the entire unit, and what to look for when you're ready to shop.