Symptoms
- Top or bottom oven heats normally while the other doesn't
- Display may show settings accepted for the non-working oven with no heat produced
- Both ovens share the same control panel
- Problem is consistent, not random
Likely causes
- CommonWeak or failed igniter in the non-working ovenEach oven cavity typically has its own igniter that can fail independently.
- PossibleFaulty temperature sensor for that cavityA bad sensor can prevent the control board from calling for heat.
- PossibleRelay or control board issue for that oven's zoneThe shared board manages each oven separately and one relay can fail.
- Less commonUser error selecting the wrong ovenDouble ovens can be easy to mis-select on the control panel.
What to do
- Double-check you selected the correct oven (upper or lower) on the control panel.
- Set the affected oven to bake and watch or listen for igniter activity as described in the oven-won't-heat guide.
- If the igniter doesn't glow at all, note that this points to a control or wiring issue for that zone rather than the igniter itself.
- If it glows but never ignites, treat it like a standard weak-igniter case and consider replacement.
- Try the other oven's settings briefly to confirm the control panel itself is working correctly overall.
- If the igniter and basic checks look fine, the sensor or a control board relay likely needs professional testing.
Tools and parts
- Flashlight
Oven igniterSearch: “gas oven igniter replacement”
Oven temperature sensorSearch: “oven temperature sensor replacement”
When to call a pro
If basic igniter checks don't explain it, an appliance technician can test the sensor and control board relay for that oven zone.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.