Most common issues on this model
- Burner not lighting or lighting late
- Flame that is yellow or lifting
- Igniter that keeps clicking
- Worn knobs or loose switches
The LCG3691ST is a 36 in LG gas cooktop in stainless steel and an older model no longer sold new. The wide top fits a long counter run and many are still cooking daily.
Years of use build up residue around the burners and igniters, so we clean and reseat each burner, test the sparks, and check the flame at several settings. If the flame is fine but a knob feels worn, we inspect the switch behind it. On a cooktop this age, we also check the supply connection and the shutoff for leaks or looseness as part of a safe inspection.
We confirm the model and serial from the label before ordering anything, because older parts must match exactly. You approve a written price first, and the work has a 30-day workmanship warranty.
Key features
- 36 in gas cooktop
- Stainless steel finish
- Gas burners
- Discontinued gas cooktop
Error codes this model can show
Is the LCG3691ST discontinued?
Yes, it is an older model that LG no longer sells new. We still service it and confirm which parts are available from the label before quoting a price, so there are no surprises.
Why is my flame yellow?
A yellow flame often comes from blocked ports or a cap that is not seated. We clean and reseat the burner and recheck the flame.
What if only one knob feels worn?
We check the knob and the switch behind it. A worn switch can be replaced without touching the rest of the cooktop, and we show you the old part when we hand over the repaired unit.
Book repair for your LCG3691ST
Book in about a minute, or call the desk. Same-day windows inside the Loop on most days, next-day across the rest of Houston.