LG DLG3401W Repair Guide
The gas twin of LG’s DLE3400 series. Same cabinet and controls; the heat source swaps to a burner assembly, so no-heat calls move to the igniter, gas valve coils, and flame sensor.
Common problems & typical repair costs
| Problem | Likely cause | Typical fix | OEM part # | Typical cost |
|---|---|---|---|---|
| No heat, igniter glows then nothing | Gas valve solenoid coils | Replace coil kit | — | $120–$220 |
| No glow at all | Igniter cracked or its circuit (fuse/thermostat) | Replace igniter | — | $120–$230 |
| Heat cuts out mid-cycle | Restricted vent tripping hi-limit | Clean vent; replace thermostat if damaged | — | $100–$220 |
| D-code warnings | Duct blockage | Vent cleaning | — | $100–$170 |
Costs are national averages for professional repair (parts + labor). See the linked cost guides below for full breakdowns.
Error codes
| Code | What it means |
|---|---|
| D80/D90/D95 | Duct blockage warning |
| tE1/tE2 | Thermistor fault |
| nP | Power supply issue |
Tech notes
Gas work belongs with a pro. The good news: coils and igniters are cheap, and gas dryers routinely serve 15+ years with only these small repairs.
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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