WED72HEDWO Dryer Belt — How to Diagnose and Replace the Drum Belt
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Understanding the Problem
What this is: The dryer drum belt wraps around the drum and connects to the motor via an idler pulley. When the motor runs, the belt turns the drum. A worn, stretched, or broken belt will prevent the drum from turning even though the motor may run. Step-by-step diagnostics and repair instructions: 1) Confirm the symptom: If the dryer motor runs (you hear the motor) but the drum does not turn, or you hear a loud snap and the drum suddenly stops, the belt is a likely culprit. Also look for visible fraying or a missing belt when you remove the front or top panel. 2) Safety first: Unplug the dryer or switch off its breaker. Turn off gas supply if this is a gas dryer. Allow the dryer to cool if recently used. 3) Access the belt: On most WED72HEDWO-style Whirlpool dryers you remove the lint screen, then release the top panel clips (or remove screws at the back) and lift the top. Remove the front panel if needed to access the drum. Some models allow access by removing the rear access panel. Refer to your model’s service manual for exact panel removal. 4) Inspect the belt and related parts: Visually inspect the belt for breakage, cracks, glazing, or fraying. Check the idler pulley for smooth rotation and the motor shaft for proper pulley condition. Inspect drum glides/rollers for wear as excessive drag can overload the belt. 5) Verify by hand: With the dryer unplugged and drum exposed, try to rotate the drum by hand. If it turns freely with a healthy belt tension point or if you can see the belt is loose or off, the belt is faulty or mis-routed. 6) Remove the old belt: Note belt routing (take a photo). Release tension on the idler pulley, remove belt from motor pulley and drum, and slide the drum out if necessary to free the belt. 7) Check/replace related parts: If the idler pulley or drum rollers are noisy, seized, or have visible wear, replace them at the same time — they shorten belt life and can cause repeat failures. 8) Install new belt: Route the new belt around the drum in the same orientation (the ribbed side engages the motor/drive pulley and idler), loop it around the motor pulley and engage the idler so the belt has proper tension. Make sure the belt sits in the drum grooves and is not twisted. 9) Reassemble and test: Reinstall panels, plug the dryer back in, and run a test cycle. The drum should turn smoothly and quietly. 10) Final checks: If the motor hums but drum still won’t turn after new belt installed, check motor coupling, idler pulley, and motor pulley for binding or damage. Safety note: Always disconnect power before working on the dryer. The idler pulley has a spring—be careful when releasing tension, and avoid placing your fingers where they can be pinched when you rotate the drum or re-tension the belt.
Common Symptoms
Dryer motor runs but drum does not turn; loud snapping sound followed by no drum rotation; visible frayed or broken belt; belt slipping or burning smell.
Common Causes
- Belt snapped from normal wear or overheating
- Idler pulley or drum rollers seized, causing extra drag and belt failure
- Mis-routed belt or slipped off during maintenance
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Helpful Repair Tip
Confirm a broken belt by removing the front/top panel and visually checking: a snapped belt is obvious. If the motor runs but the drum doesn't turn and you can rotate the drum freely by hand, the belt is almost certainly the issue.
Frequently Asked Questions
How long does it take to replace the dryer belt?
For a DIYer with basic tools, belt replacement typically takes 30–60 minutes. If you also replace rollers or the idler, allow 1–2 hours. Always unplug the dryer and follow instructions for safe panel removal and reassembly.
Can I use any belt or do I need a model-specific one?
You should use a belt that matches your dryer model’s specifications. Many belts are interchangeable across Whirlpool/Maytag/Kenmore models, but verify compatibility by checking the model number (usually on a tag behind the door or on the cabinet) before ordering. Using the wrong belt can lead to poor fit, slipping, or premature failure.
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