When an oven will not heat, the cause is usually one of five things: a failed bake element on an electric oven, a weak igniter on a gas oven, a bad gas safety valve, a relay on the control board that will not close, or a temperature sensor reading so far out of range that the control refuses to fire. The trick is telling them apart without guessing, because several of these produce the same cold oven.
First Checks
- Confirm the oven is not stuck in a delayed-start, Sabbath, or lockout mode.
- On electric ovens, look for a bake element that is visibly split, blistered, or has a break in the loop.
- On gas ovens, watch the igniter: if it glows for more than 90 seconds without the burner lighting, it is weak.
- Check that a recent power surge or tripped breaker did not take out one leg of a 240V electric supply, which leaves the oven with heat but weak.
Notes by Brand
Wolf. Dual-fuel and gas ranges use a spark-to-sense system and a glow-bar igniter in the oven. A cold oven with a healthy spark usually traces to the igniter drawing low current or a control relay, not the burner itself.
Viking. Pro-style gas ovens are hard on igniters because of their high output. A no-heat Viking oven is an igniter failure far more often than a valve, and the fix is a straightforward part swap.
Thermador and Bosch. Electric and dual-fuel ovens on these platforms flag an open element or a sensor fault as an F-code before they simply stay cold, so the display often points the way.
Miele. Electronic ovens log F-series faults; an F-code tied to the temperature probe or heating circuit will stop the oven from firing to protect itself.
Monogram, Jenn-Air, and KitchenAid. On these GE and Whirlpool platforms, a bake element or a relay on the control board is the usual culprit, and an F-code such as an open-sensor fault narrows it quickly.
| Symptom | Likely Cause | Our Fix |
|---|---|---|
| Electric oven cold, broil works | Open bake element | Test continuity, replace bake element |
| Gas igniter glows, no flame | Weak igniter, valve stays shut | Measure current draw, replace igniter |
| No igniter glow at all | Failed igniter or open circuit | Trace circuit, replace igniter or wiring |
| Heats but wrong temperature | Temperature sensor out of range | Test sensor resistance, replace and calibrate |
| Cold with a fault code | Control board relay or sensor | Read code, replace board or probe |
Safety: if you smell gas, do not try to light the oven. Shut off the gas supply, ventilate the room, and book service. Never bypass a safety valve or run an oven that releases gas without igniting.
Oven Stone Cold Before a Dinner?
Book a brand-focused Parts needs and availability are confirmed after model-specific diagnosis. Diagnostic and travel fees, if applicable, are confirmed before the appointment and before repair approval.
Frequently Asked Questions
Why Does My Oven Turn on but Never Get Hot?
On an electric oven the most common cause is a bake element that has burned open or a relay on the control board that no longer closes. On a gas oven it is usually a weak igniter that glows but never draws enough current to open the safety valve. Both are testable and both are common repairs.
Can a Bad Igniter Make a Gas Oven Stop Heating?
Yes, and it is the single most frequent gas-oven failure. The igniter has to heat enough to pull the safety valve open. As it ages it still glows but draws less current, so the valve never releases gas and the oven stays cold even though the igniter looks like it is working.
Is It Safe to Keep Using an Oven That Will Not Heat?
If you smell gas, stop and shut off the supply. A gas oven that clicks or releases gas without lighting should not be run. An electric oven that simply stays cold is not dangerous, but repeated failed starts on a control board can stress the relays, so it is best to have it looked at before the fault spreads.
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