LG DLG7401WE Repair Guide
A 7.3 cu ft gas dryer with LG’s sensor drying and a NeveRust stainless drum. The gas burner assembly is the main difference from the electric models in the same line, and it brings the igniter and valve coil faults common to every gas dryer.
LG DLG7401WE is a gas dryer, 7.3 cu ft, sensor dry dryer sold 2020 to present. Its most common repair is runs cold after a few minutes of heat, usually $160 to $330.
- 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 |
|---|---|---|---|---|
| Runs cold after a few minutes of heat | Gas valve solenoid coils dropping out when warm | Replace the valve coil kit | not listed | $160 to $330 |
| Never lights, igniter glows | Igniter too weak to open the valve, or failed coils | Measure igniter current. Replace igniter or coils | not listed | $160 to $340 |
| Clothes still damp at cycle end | Moisture sensor fouled or vent restricted | Clean sensor bars and vent path | not listed | $0 to $240 |
| Loud rumbling | Drum roller wear | Replace roller and idler kit | not listed | $160 to $330 |
| Dryer stops mid cycle | Thermal protection from restricted airflow | Clear the vent and blower. Replace thermostat if tripped permanently | 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 circuit fault |
| D80 / D90 / D95 | Exhaust vent blockage percentage |
| PS | Power supply fault |
Tech notes
Every gas dryer visit should begin with the gas shut off and the machine unplugged, in that order. It is also worth checking the flexible connector, old uncoated brass connectors are a documented hazard and cost very little to replace while the machine is already pulled out.
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.
- Carbon Monoxide Safety Guide U.S. Consumer Product Safety Commission Carbon monoxide risk from gas cooking and heating appliances.
Cost guides for this machine’s common repairs
DIY step by step instructions for this model
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