How to Replace the Drum Rollers & Idler on a LG DLE3470W Dryer — Step-by-Step Instructions
Step-by-step instructions for the LG DLE3470W (electric dryer, 7.4 cu ft, sensor dry). Parts and access points can differ slightly by production year — the steps below cover the common layout for this platform, and the model notes flag its quirks.
Unplug the dryer. Some roller shafts have sharp burrs — gloves help.
Tools
- Putty knife
- Nut driver
- Pliers for the triangular clips
Parts
- Maintenance kit: rollers + idler pulley + belt (do all three together)
Step by step
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1 Open up and pull the drum
Same teardown as a belt job: top up, front off, belt tension released, drum out. (See the belt guide for detail — you’re replacing that too, since it’s off anyway.)
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2 Spin every wheel
Rollers should spin freely and silently with no flat spots; the idler should spin without squealing; front glides (if fitted) shouldn’t be worn to metal.
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3 Swap the rollers
Pry off the triangular retaining clips (they love to fly — cup a hand over them), slide off old rollers, slide on new, new clips from the kit.
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4 Swap the idler
The idler arm usually lifts out of a slot; transfer the new pulley or replace the whole arm per your kit.
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5 New belt, drum back in, test
Route the new belt, reassemble, and enjoy a dryer that sounds five years younger.
LG DLE3470W notes & error codes
LG’s D80, D90 and D95 codes report how blocked the vent is as a percentage. A D95 is not a broken dryer — it is a duct that is 95% obstructed and a genuine fire risk.
| Code | What it means |
|---|---|
| tE1 / tE2 | Thermistor fault |
| dE | Door not closed |
| D80 / D90 / D95 | Exhaust vent blockage percentage |
| PS | Power supply fault |
Full details for this machine — common problems, causes, and costs — are in the LG DLE3470W repair guide. The general version of these instructions is here.
Grinding from the very back center after new rollers points at the rear drum bearing — some models make that a genuinely miserable job and a fair thing to hand to a pro. If you'd rather skip it entirely, find a dryer repair pro near you →
What this repair costs professionally
Sources
Where the safety, regulatory and warranty claims on this page come from. Repair costs are our own figures based on Arizona market rates and OEM parts pricing.
- Home Fires Involving Clothes Dryers and Washing Machines National Fire Protection Association Dryer fire incidence, and failure to clean as the leading contributing factor.
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