LG DLE3470W Repair Guide
A 7.4 cu ft electric dryer with LG’s sensor drying and a NeveRust stainless drum. LG’s vent blockage percentage codes make airflow diagnosis unusually straightforward.
LG DLE3470W is an electric dryer, 7.4 cu ft, sensor dry dryer sold 2020 to present. Its most common repair is not heating, usually $165 to $345.
- 5 common problems with causes, fixes and costs below.
- 4 error codes decoded.
- A dryer like this lasts about 12 to 18 years.
- Check the model and serial tag before you order any part.
Common problems & typical repair costs
| Problem | Likely cause | Typical fix | OEM part # | Typical cost |
|---|---|---|---|---|
| Not heating | Heating element or thermal fuse failure | Replace element and fuse. Clear the vent | not listed | $165 to $345 |
| Drying times getting longer | Vent restriction or lint clogged blower | Clean the full airflow path | not listed | $110 to $255 |
| Rumbling or thumping | Drum roller wear | Replace roller and idler kit | not listed | $155 to $325 |
| Will not start | Door switch or start switch failure | Replace the failed switch | not listed | $120 to $265 |
| Stops mid cycle | Thermal protection from restricted airflow | Clear vent and blower. Replace thermostat | not listed | $130 to $300 |
Costs are national averages for professional repair (parts + labor). See the linked cost guides below for full breakdowns.
Error codes
| Code | What it means |
|---|---|
| tE1 / tE2 | Thermistor fault |
| dE | Door not closed |
| D80 / D90 / D95 | Exhaust vent blockage percentage |
| PS | Power supply fault |
Tech notes
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.
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.
Cost guides for this machine’s common repairs
DIY step by step instructions for this model
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