Dryer Drum Not Turning: Why the Motor Runs But Nothing Spins

You press start on the dryer. You can hear the motor running — a steady hum from the back of the machine. But the drum sits still. You open the door, and the clothes are exactly where they were when you loaded them. Or the drum turns for a few seconds and then stops. Or it turns, but only under a light load, and stalls the moment you fill it with wet washing.

This is one of the most common dryer faults, and it’s a different problem from a dryer that won’t heat. The heating system and the drive system are separate. If the motor runs and the drum doesn’t turn, the fault is mechanical rather than electrical — the belt, the rollers, the idler pulley, or the drum support bearing. And in the vast majority of cases, the cause is a broken drive belt: a $10 to $25 part that takes about an hour to replace on most machines.

The guide works through the drive system in order. The belt is the most likely suspect and the easiest to inspect, so it comes first. If the belt is intact, the drum rollers and idler pulley are next — both are wear items that fail after years of use, producing a distinctive squealing or thumping noise before they seize completely. Only if all of those test good does the guide move on to the motor, because motor failure on a dryer is uncommon and expensive. And the drum support bearing is covered last, because bearing failure is the one fault that usually tips the calculation toward replacement on an older machine.

Common Symptoms

Motor runs but the drum doesn’t turn at all
Drum turns when empty but stops when loaded
Drum turns slowly or intermittently
Loud squealing, screeching, or thumping during operation
Banging noise as the drum rotates
Burning rubber smell from the rear of the dryer
Drum feels unusually stiff or difficult to turn by hand
Drum wobbles or sags at the front or rear
Drum has stopped and the belt is visible behind the rear panel, broken or off the pulleys
Motor hums but nothing moves, then the thermal overload trips

What Causes a Dryer Drum to Stop Turning

Broken drive belt — the most common cause by a wide margin. The belt is a consumable wear item. It stretches, cracks, and eventually snaps. The motor runs freely but nothing turns the drum. A $10 to $25 part.
Slipped drive belt — the belt has jumped off one of the pulleys rather than snapped. Often caused by an unbalanced load or a heavy item jamming the drum.
Stretched drive belt — the belt is intact but has lost tension. It slips under load, so the drum turns when empty and stalls when loaded.
Seized drum roller — the small wheels that support the drum have worn bearings. The drum becomes difficult to turn, and the belt eventually slips or breaks. A $15 to $25 part per roller.
Failed idler pulley — the spring-loaded pulley that maintains belt tension has seized or its spring has broken. The belt goes slack. A $15 to $25 part.
Worn drum support bearing — the bearing that supports the rear of the drum (or the centre spindle on top-loaders) has worn out. The drum wobbles or sags, and the belt tracks unevenly. A $15 to $30 part on some models, or a major repair if integrated into the drum assembly.
Failed motor — the motor itself has failed or the drive pulley on the motor shaft has come loose. A $80 to $150 part.
Jam in the drum — a foreign object has become trapped between the drum and the cabinet, or between the inner and outer drum. The drum can’t rotate.

What the Guide Covers

The Dryer Drum Not Turning guide is a complete 15-page diagnostic and repair reference covering the full drive system:

Drive belt inspection and replacement — how to access the belt through the rear panel, how to inspect it for cracks, glazing, or stretching, and the correct belt routing for reassembly
Drum roller testing and replacement — how to check each roller for seizure or wear, how to remove and replace them, and why you should replace all rollers as a set
Idler pulley diagnosis and replacement — how to test the pulley bearing, check the spring tension, and replace the assembly
Motor testing — how to measure motor winding resistance, test for voltage at the motor, and identify a failed motor or a loose motor pulley
Drum support bearing checks — how to test the rear bearing (front-loaders) or centre bearing (top-loaders) and assess whether the repair is economically viable
Belt routing diagrams — the correct belt path for common dryer configurations
Jam diagnosis — how to identify a foreign object trapped in the drum and how to remove it safely
Repair cost reference — typical parts costs for every component in the drive system
Repair-versus-replace framework — with thresholds adjusted for front-loading and top-loading models and machine age

What You’ll Learn

You’ll learn the diagnostic sequence that resolves most drum faults in under an hour — inspect the belt first, then the rollers, then the idler pulley, then the motor, then the bearing. Most faults are found at the first two steps.

You’ll learn how to access the drive system through the rear panel and how to inspect the belt properly. That means looking for glazing, cracking, fraying, and stretching, not just checking whether it’s snapped. A belt that looks intact but has lost its grip will cause the same symptom as a broken one under load.

You’ll learn how to test each drum roller by spinning it by hand and checking for roughness, play, or seizure. You’ll learn how to replace the idler pulley and how to check that its spring provides correct tension. You’ll learn how to measure motor winding resistance and how to tell whether the motor is receiving power.

You’ll learn how to test the drum support bearing and recognise the rumble or wobble that indicates bearing failure. And you’ll learn why bearing replacement on some dryers means replacing the entire rear bulkhead — a repair that often exceeds the value of a dryer over ten years old.

Repair or Bin?

Dryer drive system repairs are among the cheapest in appliance repair.

Drive belt — $10 to $25. Always worth replacing.
Drum roller set — $30 to $100 for a full set. Always worth replacing.
Idler pulley — $15 to $25. Always worth replacing.
Motor — $80 to $150. Worth replacing on any dryer under eight years old.
Drum support bearing — $15 to $30 if replaceable separately. Worth doing on any dryer under ten years old.
Rear bulkhead assembly — $150 to $300. Borderline on dryers over eight years old.
Motor pulley or drive coupling — $15 to $40. Always worth replacing.

The guide gives you the exact threshold for each fault, with worked examples across front-loading and top-loading dryers. The key distinction: belt, roller, and pulley faults are always worth fixing. A motor failure is worth fixing on a newer machine. Drum bearing or bulkhead failure is the one scenario where the repair cost approaches the value of the dryer — and on a machine over ten years old, replacement is usually the right call.

Frequently Asked Questions

Why is my dryer motor running but the drum not turning?

A broken drive belt is the most common cause. The belt connects the motor to the drum and is a consumable wear item. Replacement belts cost $10 to $25 and take about an hour to fit.

Why does my dryer drum turn when empty but stop when loaded?

A stretched or glazed drive belt that has lost its grip. It has enough tension to turn the empty drum but slips under the weight of wet clothes. Replace the belt.

Why is my dryer making a squealing noise?

A worn or seized drum roller or a failing idler pulley. Both are inexpensive wear items. Inspect each roller by spinning it by hand — if it feels rough, stiff, or noisy, it needs replacing.

Can I replace a dryer belt myself?

Yes, on most dryers. It requires removing the rear panel or front panel depending on the model, routing the belt around the drum and pulleys, and reassembling. The guide covers the correct routing for common configurations.

Is it worth repairing a dryer drum that won’t turn?

Usually yes. Belt, roller, and pulley faults are all cheap to fix. The exception is drum bearing failure that requires replacing the rear bulkhead, where the repair cost often exceeds the value of a dryer over ten years old.

Get the Complete Dryer Drum Not Turning Guide

Stop guessing why the drum won’t turn. This guide covers every component in the drive system, tells you how to test each one, and gives you the repair-or-replace answer.

Dryer Drum Not Turning — $7.95

Know the fault. Fix it properly. Or know when it’s time for a new one.

Related Guides

Dryer Not Heating — $7.95
The companion dryer guide. Covers the heating circuit faults — thermal fuse, element, thermostats, and igniter — that cause a dryer to run without heat.

Dryer Repair — $7.95
The dryer pillar post. Covers the wider picture including won’t heat, won’t turn, and takes multiple cycles to dry — with links to both specific guides.

LG Dryer Fault Diagnosis Guide — $7.95
If your dryer is an LG, this guide includes the LG-specific fault codes (dE, tE, hE) and known weak points including the drive belt and roller faults covered in this guide.

Washing Machine Not Spinning — $7.95
If you have this as a separate blog post, it’s the natural companion to the dryer drum guide for anyone troubleshooting laundry equipment.