Oven Not Heating: Electric and Gas Oven Troubleshooting
An oven that will not heat, or heats unevenly, usually has a failed bake element, a weak gas igniter, a tripped breaker, wrong settings or a temperature sensor problem. Safe checks for each.
- Difficulty
- Moderate
- Time
- 20–60 minutes
- Typical cost
- $0 for settings and breakers; elements and igniters cost more
An oven that stays cool, takes forever to preheat or burns one side of every pan is frustrating, but the causes are usually limited. Electric ovens heat with a bake element at the bottom and a broil element at the top. Gas ovens use a burner lit by a hot-surface igniter on most modern models. Both rely on a temperature sensor and a control. Checking each in order finds most problems.
Diagnose the symptom
| What you notice | Electric oven | Gas oven |
|---|---|---|
| No heat at all, display works | Breaker half tripped, bake element, control | Igniter, gas valve, gas supply |
| Broil works but bake does not | Bake element failed | Bake igniter weak or failed |
| Takes a very long time to preheat | Element partly failed, sensor | Igniter weak; gas valve opening slowly |
| Oven temperature off by a lot | Temperature sensor or calibration | Sensor or calibration |
| Display dead, nothing works | Power, breaker, control board | Power, breaker, control board |
| Error code shown | Look up the code in the manual | Look up the code in the manual |
Step 1: Settings and modes
Make sure a delay start, timer, control lock or Sabbath mode is not set. Many ovens have a demo or showroom mode that lights the display without heating. Check the manual for how to turn these off.
Step 2: Power
Electric ranges use a double 240-volt breaker. If one half trips, the clock and lights may work while the elements do not. Switch the breaker fully off, then back on. The Electrical Safety Foundation International notes breakers trip when current exceeds safe levels; if it trips again, have the range and circuit checked. Gas ranges plug into a standard outlet for the igniter and controls, so check that outlet and its breaker.
Step 3: Electric oven bake element
With the oven off and cool, look at the bake element on the oven floor (on some models it is hidden under the floor panel). Blisters, breaks or a spot that glowed brightly before failing mean it has burned out. To confirm, turn off the breaker, remove the element’s mounting screws, pull it forward slightly, disconnect the wires and test for continuity with a multimeter. Replace it with the part for your model number.
Step 4: Gas oven igniter
Remove the bottom panel of the oven to see the bake burner. Set the oven to bake and watch the igniter. It should glow brightly and the burner should light within a short time. If the igniter glows but the burner never lights, the igniter is usually too weak to open the gas safety valve and needs replacing. If the igniter does not glow at all, check power and the control. Turn off power and let it cool before touching it.
Step 5: Check the temperature
Place an oven thermometer in the center of the oven and preheat to a set temperature. Compare after it has cycled for a while. Many ovens allow calibration adjustment through the control panel; your manual explains how. A large difference that calibration cannot fix points to a failed temperature sensor.
Gas safety and carbon monoxide
If you smell gas, turn off the oven, do not use switches or flames, leave the house and call the gas utility from outside. The EPA lists gas stoves, incomplete combustion in gas ranges and worn or poorly adjusted combustion appliances among sources of carbon monoxide in homes. Never use a gas oven to heat your home, use the range hood or ventilation while cooking, and keep a working CO alarm.
Common mistakes
- Testing elements with power on.
- Assuming a glowing igniter is a working igniter.
- Covering the oven floor or vents with foil, which can block airflow and damage the oven.
- Ignoring a gas smell to finish cooking.
When to call a technician
Call an appliance technician for gas valve, burner or gas line problems, control board failures, repeated breaker trips, or any repair that requires moving a gas range away from its connection. A qualified technician should also check a gas oven that produces soot, a yellow flame or a strong odor during use.