Oven Not Heating Up
An electric oven has several heating elements: the lower (bottom) element, the upper grill element and, in fan ovens, a circular element around the fan at the back. When one fails, the oven still works on some settings but not others. That is the first clue we use. If the oven does not heat on any setting but the lights and display work, the thermal cut-out, the main relay on the control board or the power supply is the more likely cause.
- Heats on grill but not bake: bottom element failed
- Fan runs but no heat on fan setting: fan element failed
- No heat at all, display works: thermal cut-out or control relay
- Oven trips the breaker: element shorted to earth, or moisture in wiring


