Oven stays completely cold
The display may turn on, but the cavity never warms in bake or broil.
Start here: Start with settings, timer or delayed-start modes, and the home's breaker or fuse situation before moving to internal parts.
Direct answer: If your oven is not heating, the most common branches are a wrong mode or delayed-start setting, a tripped breaker or partial power issue, a failed oven igniter on gas models, or a failed oven heating element on electric models.
Most likely: First identify whether the oven is gas or electric and whether it stays completely cold, heats weakly, or only broils or bakes. That split usually points you to the right branch faster than guessing at parts.
An oven can look dead for several different reasons that feel similar from the kitchen. Start with the easy checks you can see from the front, then separate gas-oven ignition problems from electric-element problems before you spend money or open panels.
Don’t start with: Do not start by ordering an oven control board. Controls are possible, but simpler causes and more common heating parts should be ruled out first.
The display may turn on, but the cavity never warms in bake or broil.
Start here: Start with settings, timer or delayed-start modes, and the home's breaker or fuse situation before moving to internal parts.
The oven may brown from the top in broil, but normal baking does not heat properly.
Start here: On electric ovens, suspect the oven bake element first. On gas ovens, watch whether the oven igniter glows but fails to light the burner.
The oven can bake, but the top heat never comes on in broil mode.
Start here: This points more toward the broil side heating circuit or broil element than a full oven control failure.
Preheat takes much longer than usual, temperatures seem low, or food cooks unevenly.
Start here: Check the door seal and heating pattern first, then consider an oven sensor issue or a weak igniter on gas models.
Many ovens will appear normal at the display but will not energize heat if they are in timer, delay, demo, or an incomplete start sequence.
Quick check: Cancel the cycle, clear any timer or delay setting, set a simple bake temperature, and press start if your panel requires it.
An electric oven can have lights and a working clock while still missing the higher-voltage supply needed for heating.
Quick check: Check for a tripped double breaker, a half-tripped breaker that looks on, or another recent power issue in the kitchen.
Gas ovens commonly fail to heat when the igniter weakens. Electric ovens commonly lose bake or broil when an element burns out.
Quick check: On a gas oven, look for an igniter that glows without lighting the burner. On an electric oven, look for blistering, cracks, or a burned spot on the visible element.
If the oven heats some but not correctly, a bad oven sensor, a leaking oven door gasket, or a control issue can cause low or unstable heat.
Quick check: Look for a loose or damaged oven door gasket, compare bake and broil behavior, and note whether the oven overshoots, undershoots, or stops heating early.
Mode and timer mistakes are common, safe to check, and can mimic a failed oven.
Next move: If the oven begins heating normally, the problem was a setting or interrupted cycle rather than a failed part. If the display responds but the oven still stays cold or heats only in one mode, continue to the next step.
What to conclude: You have ruled out the easiest no-heat branch and can focus on power or heating components.
Electric ovens often lose heat from a breaker issue while the clock and lights still work. This is a common lookalike branch.
Next move: If heat returns after a breaker reset, monitor the oven during preheat and the next few uses. If the breaker is fine or trips again, move on to identifying the heating branch.
What to conclude: A one-time trip may have interrupted power, but a breaker that trips again suggests an electrical fault that should not be ignored.
Gas and electric ovens fail differently, and this split helps avoid buying the wrong part.
Next move: If you clearly find that only one heating side has failed, you have a strong branch for the next step. If you cannot safely observe the heating pattern or both modes fail with no obvious clue, continue to the sensor and seal checks.
If the oven heats some but not enough, the problem may be a weak igniter, a drifting oven sensor, or heat escaping past the door.
Next move: If you find a damaged oven door gasket or a clearly loose sensor mount, that may explain poor heating or unstable temperature. If the seal looks good and the oven still heats weakly, the likely branch is a weak gas-oven igniter, a drifting oven sensor, or a control-side issue that may need testing.
By this point you should know whether the problem is likely a common heating part or a less-certain control or wiring issue.
Repair guide: How to Replace an Oven Igniter
Related repair guide: How to Replace an Oven Bake Element
A good result: You now have a narrower, evidence-based repair path instead of guessing at expensive parts.
If not: If the symptoms still do not fit a clear branch, professional diagnosis is the safer next step.
What to conclude: The most supported homeowner-replaceable branches here are oven igniter, oven heating element, oven sensor, and sometimes an oven door gasket for heat loss. Control and wiring faults are real but less suitable for guess-and-buy.
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That often happens with an electric oven that has partial power. The display can work while the heating circuit does not. Check the breaker first, then separate bake and broil behavior to narrow the fault.
No. A gas-oven igniter can glow and still be too weak to open the gas valve properly. If it glows but the burner does not light or preheat is very slow, the oven igniter is a strong suspect.
That usually points to the specific heating side rather than a full oven failure. On electric ovens, suspect the affected oven heating element first. On gas ovens, watch the ignition behavior for the mode that fails.
Yes. A damaged oven door gasket can let enough heat escape that preheat becomes slow and cooking temperatures stay low or uneven. It is more likely to cause weak heating than a completely cold oven.
No. Oven controls are expensive and less suitable for guess-and-buy. Rule out settings, power, oven igniter, oven heating element, oven sensor, and door-seal problems first. If those branches do not fit, professional diagnosis is usually the better next step.