A dryer that will not spin has a problem in the drive system: the motor, the belt that connects the motor to the drum, or the pulley and rollers that hold the drum in place. A broken drive belt is the most common cause, and a quick hand test tells you whether the belt is the problem.
This guide covers 9 causes of a dryer that won’t spin or start, how a technician tests a dryer motor, and what each repair costs. Bonita Appliance Repair repairs electric and gas dryers in Bonita, Chula Vista, National City, and across San Diego County.
Start here: the hand test
Unplug the dryer, open the door, and turn the drum by hand.
- The drum spins freely with almost no resistance: the drive belt is almost certainly broken or off its pulley.
- The drum is very hard to turn or will not move: a seized idler pulley, a seized drum roller, or something jammed between the drum and the cabinet.
- The drum turns normally: the belt is likely fine. The problem is more likely the door switch, thermal fuse, start switch, or motor.
Then listen when you press Start. A motor that runs with no drum movement points to the belt or pulley. A hum with no movement points to the motor. Silence points to a switch, fuse, or power problem.
Match the symptom to the cause
| What happens when you press Start | Most likely causes |
|---|---|
| Motor runs, drum does not turn | Broken drive belt, failed idler pulley (causes 4–5) |
| Loud hum, nothing moves | Seized pulley or rollers, failed motor start switch or motor (causes 5–7) |
| Nothing happens, lights or display work | Door switch, thermal fuse, start switch or control (causes 1, 3, 9) |
| No lights and no sound | Breaker, power cord, or terminal block (cause 2) |
| Starts, then stops after a few minutes | Motor overheating, restricted vent (cause 8) |
| Squealing or thumping before it stopped | Worn idler pulley or drum rollers (causes 5–6) |
9 reasons a dryer won't spin or start
Safety note: Unplug the dryer before you turn the drum by hand or remove any panel. Electric dryers run on 240 volts. Gas dryers also have a gas supply line; leave gas work to a technician.
1. The door is not closing the door switch
Every dryer has a door switch that cuts the motor when the door is open. A broken door catch, a bent strike, or a failed switch stops the dryer from starting even with the door shut.
- Close the door firmly and press Start again.
- With the door open, press the switch plunger by hand. Most switches click; no click can mean a failed switch.
A door switch that does not click or test for continuity needs to be replaced.
2. The dryer has no power
Electric dryers use a 240-volt double-pole breaker. Gas dryers plug into a standard 120-volt outlet. No lights and no sound mean no power is reaching the dryer.
- Reset the dryer breaker by switching it fully off, then on.
- Check that the plug is fully seated in the outlet.
- Pull the dryer out and look at the power cord for scorch marks at the plug or where it enters the dryer.
A burned cord or terminal block is a fire hazard. Leave the dryer unplugged and have the cord and terminal block replaced.
3. The thermal fuse has blown
The thermal fuse cuts power when the dryer overheats. On many dryers, including most Whirlpool-built dryers, a blown thermal fuse stops the motor, so the dryer will not start at all. A clogged vent is the usual reason the fuse blows.
A technician confirms the fuse with a multimeter and replaces it, and the vent has to be cleared at the same time. Dryer not drying covers vent checks.
4. The drive belt is broken
The drive belt wraps around the drum and the motor pulley. When it breaks, the motor runs but the drum does not turn, and the drum spins freely by hand. On some dryers a belt switch also stops the motor when the belt breaks.
Replacing the belt means removing the front or top panel and lifting the drum. The idler pulley is checked at the same time, since a worn pulley often causes the belt to fail.
5. The idler pulley is worn or seized
The idler pulley keeps tension on the belt. A worn pulley squeals or chirps for weeks before it fails. A seized pulley can burn through the belt or stall the motor.
The idler pulley is usually replaced together with the belt.
6. The drum rollers or glides are worn
Drum support rollers at the back, and glides or bearings at the front, carry the weight of the drum. Worn rollers thump; seized rollers make the drum hard to turn and can stall the motor.
Rollers are replaced as a set, along with the belt and idler pulley if they are worn.
7. The motor or its start switch has failed
Dryer drive motors have a centrifugal start switch that changes the motor from its start winding to its run winding as it speeds up. A failed start switch or a burned winding makes the motor hum without turning. Some motors will run if the drum is turned by hand first, which is a sign of a start-switch or start-winding failure.
A dryer motor that hums should be shut off right away; running it stalled can overheat the motor and trip its internal overload.
8. The motor is overheating
Lint packed around the motor and blower housing, or a restricted vent, makes the motor run hot. Its built-in thermal overload shuts it off, and the dryer stops a few minutes into the cycle. The motor may restart after it cools.
A technician cleans lint from inside the cabinet and blower housing and checks the vent before deciding whether the motor needs to be replaced.
9. The start switch, timer, or control board has failed
If the dryer has power and the door switch, thermal fuse, and belt are good, the start button, the timer on older dryers, or the electronic control board on newer dryers may not be sending power to the motor.
Controls are tested in order, starting with the start switch, since it is the least expensive part.
How a technician tests a dryer motor
A technician confirms a motor failure before replacing it, since a motor is one of the more expensive dryer parts. With the dryer unplugged, the technician:
- Removes the front or rear panel and takes the belt off the motor pulley, so the motor can be checked by itself.
- Turns the motor shaft and blower wheel by hand to check for seized bearings or a jammed blower.
- Tests the motor windings and the centrifugal start switch for continuity with a multimeter, using the wiring diagram on the dryer’s tech sheet.
- Checks the motor’s wiring harness and connectors for burned or loose terminals.
- Runs the motor without the belt. A motor that starts and runs smoothly unloaded points back to the belt, pulley, or rollers.
On many dryers the blower wheel is mounted on the motor shaft, so a seized blower can look like a motor failure. Motors are matched to the dryer’s model number.
How much does it cost to fix a dryer that won't spin?
These are typical dryer repair prices at Bonita Appliance Repair. The final price depends on your model, the failed part, and the time the repair takes.
| Dryer repair | Typical price |
|---|---|
| Minor repairs: belts, idler pulleys | $150–$300 |
| Major repairs: drive motors, timers | $565–$625 |
A technician diagnoses the dryer and explains the repair and its price before any work begins. See washer and dryer repair in San Diego for more repair prices.
Repair or replace your dryer?
The National Association of Home Builders puts the average life expectancy of a clothes dryer at about 13 years (Study of Life Expectancy of Home Components, NAHB, 2007). Belts, idler pulleys, rollers, door switches, and thermal fuses are usually worth repairing at any age. A drive motor on a dryer near the end of its life is a closer call.
A common rule of thumb: consider replacing the dryer if the repair costs more than half the price of a comparable new model and the dryer is past half its expected life. Read is it better to repair or replace an appliance for more detail.
When to call a dryer repair technician
Call a dryer repair technician when:
- The drum spins freely by hand or will not turn at all
- The motor hums but the drum does not move
- The dryer has power but will not start with the door closed
- The dryer stops a few minutes into each cycle
- You see scorch marks on the power cord or smell burning
Bonita Appliance Repair offers dryer repair in San Diego and dryer repair in Chula Vista, including emergency dryer repair. We repair Whirlpool, Samsung, LG, Kenmore, Maytag, GE, and Speed Queen dryers. A technician diagnoses the fault and explains the repair and its price before any work begins.
Dryer won't spin FAQs
Why is my dryer running but not spinning?
A dryer that runs but does not spin almost always has a broken drive belt. Unplug the dryer and turn the drum by hand. If it spins freely with almost no resistance, the belt is broken or has slipped off the idler pulley.
Why does my dryer hum but not start?
A hum with no movement usually means the motor cannot turn. The causes are a seized idler pulley or drum roller, a failed motor start switch, or a failed motor. Turn the dryer off right away to avoid overheating the motor.
Why won’t my dryer start when I push the button?
If the dryer has power but does nothing, check that the door is fully closed. If it is, the door switch, thermal fuse, or start switch has likely failed. On many Whirlpool-built dryers, a blown thermal fuse stops the motor completely.
How do I know if my dryer motor is bad?
Signs of a bad dryer motor include a loud hum with no movement, a burning smell, a motor that stops after a few minutes and restarts after cooling, and grinding from the motor area. A technician confirms the failure by testing the windings and start switch with a multimeter.
How much does it cost to fix a dryer that won’t spin?
At Bonita Appliance Repair, belt and idler pulley repairs typically cost $150–$300. Drive motor replacement typically costs $565–$625.
Does Bonita Appliance Repair fix dryers that won’t spin?
Yes. Bonita Appliance Repair repairs electric and gas dryers from all major brands in Bonita, Chula Vista, National City, and across San Diego County. Call 619-329-5938 or book online.
Book dryer repair in San Diego
If your dryer still will not spin after these checks, Bonita Appliance Repair can find the failed part and explain the repair and its price before any work begins.
Bonita Appliance Repair · 5080 Bonita Rd #22, Bonita, CA 91902 · 619-329-5938
