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.
LG DLG3401W is a gas dryer dryer sold 2019 to present. Its most common repair is no heat, igniter glows then nothing, usually $120 to $220.
- 4 common problems with causes, fixes and costs below.
- 3 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 |
|---|---|---|---|---|
| No heat, igniter glows then nothing | Gas valve solenoid coils | Replace coil kit | not listed | $120 to $220 |
| No glow at all | Igniter cracked or its circuit (fuse/thermostat) | Replace igniter | not listed | $120 to $230 |
| Heat cuts out mid cycle | Restricted vent tripping hi limit | Clean vent. Replace thermostat if damaged | not listed | $100 to $220 |
| D code warnings | Duct blockage | Vent cleaning | not listed | $100 to $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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If the repair costs more than this machine is worth to you, we'll quote you on taking it. Cash offer if it still has value, free or paid scrap pickup if it doesn't. We'll tell you honestly which it is.