Dryer Belt Broke — What Part Fixes This and How to Confirm It
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Understanding the Problem
When a dryer's drive belt breaks the drum will stop turning even though the motor may still run. The belt is a looped rubber piece that wraps around the drum and connects to the motor pulley and idler. Over time it can crack, stretch, or snap from age, abrasive wear, or from a seized roller/shaft that increases belt stress. A broken belt is one of the most common reasons for a dryer that hums but doesn't tumble, makes unusual thumping noises, or smells like something is burning. Replacing the belt (and inspecting associated parts like the idler pulley and drum rollers) usually restores normal operation — but you should confirm the belt is the problem before buying parts.
Common Symptoms
Dryer motor runs or hums but drum does not tumble; loud thumping or slapping noises; burning rubber smell; visible snapped belt or belt fragments under/behind the dryer.
Common Causes
- Normal wear and aging of the rubber belt (cracking, glaze, or stretching)
- Seized or worn idler pulley or drum rollers that increase belt stress
- Overloading the dryer or repeatedly drying heavy wet items that strain the belt
- Foreign objects or drum misalignment that abrade or pinch the belt
Popular Parts That Fix This Problem
These are the most common replacement parts that fix this problem. When you're ready to order, click below to find the right part at PartsDiscount.com — just search by your appliance model number for a guaranteed fit.
Helpful Repair Tip
Open the dryer door and try to rotate the drum by hand. If the motor runs but the drum spins freely or not at all while the motor hums, the belt is likely broken. Also look under the cabinet (or behind the dryer) for a snapped loop of rubber.
Frequently Asked Questions
Can I run the dryer with a broken belt?
No. Running the dryer with a broken belt can cause the motor to overheat or burn out because the motor may continue to run without turning the drum. It can also cause additional damage to idler pulleys, drum rollers, or the cabinet. Disconnect power and inspect before operating.
Is replacing a dryer belt a DIY job and how long does it take?
Yes, replacing a dryer belt is a common DIY repair for someone with basic mechanical skills and tools (screwdrivers, socket set, possibly pliers). Typical time: 30–90 minutes depending on model accessibility. Always unplug the dryer first, take photos during disassembly to aid reassembly, and replace worn idler pulleys or rollers while you have the unit open.
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