Whirlpool Dryer Roller B (WGD9470WW2) – What Part Fixes This Problem?
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Understanding the Problem
What is Roller B and why it matters: Roller B refers to one of the drum support rollers in your Whirlpool dryer (WGD9470WW2). These rollers support and guide the drum as it spins. When a roller wears, bearings seize, or the shaft becomes grooved, the drum rubs or squeals, causes loud noises, or mis-tracks the belt. Replacing the bad roller restores smooth, quiet drum rotation. Step-by-step diagnostic and repair steps: 1) Confirm the symptom: Run the dryer empty on a low heat/air-only cycle and listen. Squealing, rumbling, or thumping that changes with drum rotation usually means a worn roller or bearing. 2) Visual check from the back: Unplug the dryer and remove the lint screen and rear access panel (or tip top back). Inspect the rollers for cracks, flat spots, heavy wear, or metal shavings. 3) Manual spin test: With power off and drum exposed, rotate the drum by hand. Worn rollers will feel rough, bind, or wobble. Roller shafts should be centered in the roller hub without side-to-side play. 4) Inspect related parts: Check the belt for glazing or cracks, the idler pulley for smooth operation, and the drum glides/slides for wear. Often rollers fail in pairs or together with the idler. 5) Order parts: For model-specific replacement order the genuine Whirlpool drum roller or appropriate roller kit for WGD9470WW2 (verify with your model number). Consider replacing all rollers at once if multiple show wear. 6) Tools and prep: Unplug the dryer, gather nut drivers (1/4, 5/16, 3/8), screwdrivers, socket set, putty knife (for top clips), gloves, and a marker to note belt routing. 7) Disassembly (typical front-access style): a. Unplug the dryer (for gas dryers: shut off gas at the supply). b. Remove the lint screen and release the top panel clips with a putty knife or screwdriver; lift the top and prop it up. c. Disconnect any door switch wires and remove the front panel screws; lift off the front panel to expose the drum. d. Slide the drum forward and lift it out to access rollers (or if back access design, remove rear panel to reach rollers). 8) Remove old roller (typical): a. Note roller orientation and any retaining clips/nuts. b. Remove retaining clip or nut and slide the roller off the shaft; some rollers press off the shaft and will require pulling straight out. c. Clean the shaft and mounting surfaces of debris and metal shavings. 9) Install new roller: a. Place the new roller onto the shaft so it sits squarely; re-install retaining clip or nut to factory torque snugness (do not over-tighten — roller must turn freely). b. If supplied as a kit, install axle, bearings and any spacers exactly as removed. 10) Reassembly: a. Re-seat the drum and route the belt over the drum and idler pulley in the original direction; mark belt orientation if needed. b. Reattach front panel, reconnect door switch, lower top and snap into place, reinsert lint screen. 11) Test run: Plug dryer in, run empty for 5–10 minutes; listen for smooth, quiet operation and check drum tracking. 12) Follow-up: If noise persists, replace other rollers and check the idler pulley or motor bearings. Also inspect drum glides and rear bearing plate. Safety note: Always unplug the dryer before any inspection or repair. If you have a gas dryer, shut off the gas supply before any procedure that might disturb the gas connection. If you are not comfortable working on the dryer, hire a qualified appliance technician.
Common Symptoms
Loud squealing, rumbling or thumping during rotation; drum wobble or mis-tracking; visible wear on roller surface; belt wear from drum misalignment.
Common Causes
- Worn or seized roller bearings causing rough rotation
- Grooved or damaged roller shaft allowing the roller to wobble
- Age-related rubber deterioration or cracking of roller surface
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 ProsourceParts.com — just search by your appliance model number for a guaranteed fit.
Helpful Repair Tip
With the drum removed, spin each roller by hand — a bad roller will feel gritty, bind, or have side-to-side play. If one roller is bad, replace all rollers and inspect the idler pulley and belt.
Frequently Asked Questions
How long does it take to replace a dryer drum roller?
For a competent DIYer with basic tools, replacing one roller typically takes 45–90 minutes (including disassembly and reassembly). If you replace all rollers and inspect other parts, allow up to 2 hours.
Can I just replace one roller or should I replace all of them?
If one roller has failed, the others are often close behind. It's best practice to replace all drum rollers (and inspect the idler pulley and belt) at the same time to avoid repeating the repair soon after.
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