LG LSGL6335F Repair Guide
A slide-in gas range with LG’s InstaView glass door and air fry. The InstaView panel adds a door light board that can fail on its own without affecting cooking at all.
Common problems & typical repair costs
| Problem | Likely cause | Typical fix | OEM part # | Typical cost |
|---|---|---|---|---|
| Oven slow to light or will not light | Hot surface igniter degraded | Replace igniter | — | $180–$360 |
| InstaView window stays dark | Door light board or knock sensor | Replace the door display board | — | $180–$400 |
| Oven fails to reach temperature | Sensor, igniter or safety valve | Measure igniter current and sensor resistance before ordering | — | $150–$430 |
| Surface burner will not stay lit | Dirty burner head or flame sensing fault | Clean burner; replace assembly if it persists | — | $140–$320 |
| Control panel unresponsive | Board or touch panel fault | Replace as diagnosed | — | $260–$530 |
Costs are national averages for professional repair (parts + labor). See the linked cost guides below for full breakdowns.
Error codes
| Code | What it means |
|---|---|
| F9 | Oven not reaching temperature in the expected time |
| F1 | Oven temperature sensor fault |
| F19 | Control board fault |
| F3 | Key stuck on the control panel |
Tech notes
F9 means the oven failed to reach temperature within the expected time — on a gas range that is the igniter, the safety valve or the sensor, and igniter current measurement is the fastest way to split them.
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.
- 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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