Whirlpool WGD6200SW0 Dryer — Drum Rollers, Drive Belt & Idler Pulley Replacement Guide
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Understanding the Problem
Brief explanation: Over time the drum rollers, drive belt and idler pulley wear out and cause squealing, thumping, uneven tumbling or a drum that won't turn. The rollers support the drum; the belt transfers motor power to the drum; the idler keeps belt tension. Replacing the worn parts usually restores quiet, smooth rotation. Step-by-step diagnostic and repair steps: 1) Safety first: Unplug the dryer. If your model is a gas dryer (WGD often denotes gas), turn off the gas supply valve and, if you disconnect gas lines, have a qualified technician handle reconnection. Wear gloves and eye protection. 2) Confirm symptom and locate noise: Run the dryer empty on a high-heat cycle for 10–20 seconds with the cabinet closed and listen. Note whether noise is present at startup (belt/roller/idler) or begins as drum spins (rollers/idler). Do not operate long if you smell burning. 3) Access the drum: Depending on model, remove lint screen, then remove top panel (usually screws at back) and/or front panel. You may need to remove two screws behind the lower kick panel and lift out the front. Consult your service manual or take photos of connections as you go. 4) Inspect belt: Visually check the belt for fraying, glazing, missing ribs or a snapped section. With cabinet open, try turning the drum by hand. A snapped belt or badly glazed belt will slip and the drum will be hard or impossible to turn. 5) Inspect drum rollers: Locate rollers (usually two or three at the rear and one or two at the front). Spin each roller by hand. They should spin freely and quietly; roughness, wobble or flat spots indicate replacement. Also inspect roller shafts and bushings for scoring or play. 6) Inspect idler pulley: Check the idler pulley wheel and bearing. It should spin freely without grinding and the idler spring should provide firm tension. Replace if coated in debris, damaged or noisy. 7) Remove drum (if necessary): If you need better access, remove drum by unrouting the belt from the idler and motor pulley and lifting drum out of the cabinet. Note belt routing before removal (take a phone picture). 8) Replace parts: Install new rollers (replace shaft and clips if provided). Press new rollers fully on the shaft and secure any retaining clips. Install new idler pulley and ensure the spring is hooked correctly to provide tension. Route the new drive belt around the drum ribs (if ribbed belt) and around the motor pulley with the idler applying tension on the smooth side of the belt per routing diagram. 9) Reassemble and test: Reinstall drum and front panel, reconnect any wiring harnesses, replace top/kick panels and lint screen. Plug in dryer (and turn gas back on if applicable). Run an empty cycle and listen for noise, check drum rotation and check for proper heating. Observe belt tracking and make minor alignment adjustments if needed. 10) Final checks: After a short test, re-check fasteners, confirm lint trap is clean and that the dryer vents properly. Safety note: Always unplug the dryer before working on it. If the dryer is gas-equipped, shut off the gas supply and do not attempt to reconnect gas lines unless you are qualified — incorrect reconnection can cause leaks and carbon monoxide risk. If you smell gas after reassembly, stop and call a professional or your gas utility.
Common Symptoms
Loud squealing or rumbling during rotation, thumping or banging, drum not turning or slipping, burning rubber smell, uneven tumbling or clothes coming out with creases.
Common Causes
- Worn or seized drum rollers causing noise and drag
- Glazed, frayed or snapped drive belt causing slipping or no tumbling
- Faulty or noisy idler pulley not providing proper belt tension
Popular Parts That Fix This Problem
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Helpful Repair Tip
Spin the drum by hand with the belt removed: if you hear grinding or feel rough spots, the drum rollers or rear bearing are bad. A snapped or glazed belt is usually obvious on visual inspection.
Frequently Asked Questions
How do I know whether I need rollers, belt or idler pulley?
Listen and feel: a high-pitched squeal or grinding that changes with drum speed usually points to rollers or idler bearings. A snapping sound or drum not turning indicates a broken belt. Visual inspection with the cabinet open (spin parts by hand) will confirm: rollers or idler that don't spin freely must be replaced; a frayed, glazed or broken belt must be replaced.
Can I replace these parts myself and how long will it take?
Yes — a homeowner with basic tools (screwdrivers, nut drivers, pliers) can replace rollers, belt and idler. Expect about 45–90 minutes depending on experience. Take photos of belt routing and wiring before disassembly, unplug the dryer (and shut off gas if applicable), and follow the step-by-step checks above. If you’re uncomfortable with gas models or internal reassembly, hire a qualified technician.
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