The most common cause of a dryer drum that won’t turn is a snapped drive belt, not a failed motor. If you can hear the motor humming or running while the drum stays still, that’s the clearest sign pointing to the belt. Work through the checks below in order before assuming you need a new motor.
This page is part of our full dryer troubleshooting guide. If the drum turns but makes a squeaking noise instead of stopping, see our dryer squeaking guide instead, since the two symptoms share some causes but aren’t the same problem.
Quick Diagnosis Table
| Cause | Likelihood | Difficulty | Typical Part Cost |
|---|---|---|---|
| Snapped or slipped drive belt | Very likely | Moderate | $15–25 |
| Door switch not engaging | Likely | Easy | $10–20 |
| Seized drum roller or idler pulley | Likely | Moderate | $15–35 |
| Motor thermal overload tripped (motor too hot) | Possible | Easy to check | $0 |
| Faulty start switch or timer | Possible | Moderate | $15–40 |
| Failed drive motor | Rare | Professional recommended | $80–180 |
Repair or Replace?
A belt, door switch, or roller repair costs well under $40 in parts and is a reasonable DIY job with basic tools, so repairing is the clear choice in most cases. A failed drive motor is the exception: on a dryer older than 10 years, that repair often costs enough that a new dryer is the more sensible option.
If the motor doesn’t run at all, and you hear nothing when you start a cycle, that points away from the belt and toward the door switch, start switch, or a power issue instead. Check the door is latching fully and confirm the outlet or breaker is supplying power before opening any panel.
Frequently Asked Questions
How do I know if my dryer belt is broken?
Open the door and try turning the drum by hand. If it spins very freely with no resistance, and you heard the motor running before you opened the door, the belt has almost certainly snapped.
Why would the motor run but the drum not turn?
The motor and drum are connected by a belt looped around a pulley system. If that belt snaps or slips off, the motor keeps running on its own but nothing transfers that motion to the drum.
Can I still dry clothes if the drum won't spin?
No. Clothes need to tumble for even drying and for the heating element's airflow to work safely; running a dryer with a stuck drum can also overheat the motor.
Is a broken drive belt an emergency repair?
Not from a safety standpoint, but it does mean the dryer is unusable until fixed. It's a straightforward DIY repair for most people comfortable with basic tools.
The information provided here is a diagnostic aid and does not replace the intervention of a qualified professional.
