Important: Disconnect power or gas before any service procedure that requires access to internal components. These guides explain symptoms; they are not a substitute for safe technical diagnosis.
Gas ignition problems
A gas oven may have an igniter that glows but is too weak to open the safety valve reliably. This can cause delayed ignition or long preheat times.
Electric heating components
Dual-fuel and electric models rely on bake, broil and convection elements. A failed element can still allow partial heating through another mode.
Temperature sensing and calibration
A sensor or thermostat issue can make the actual temperature differ from the selected setting. Calibration should follow component testing, not replace it.
Airflow and door sealing
Convection fans, cooling fans, door gaskets and hinges affect how evenly the oven heats and retains temperature.
Frequently asked questions
A missing heating stage, poor airflow, an inaccurate sensor, or door sealing can produce an acceptable preheat signal but uneven cooking.
Delayed ignition should be inspected because gas can accumulate before lighting.
No. Calibration only makes sense after the heating and sensing systems are confirmed to be functioning correctly.