Common reasons why your electric oven not heating up include faulty heating elements, a malfunctioning thermostat, or issues with the temperature sensor.
Faulty heating elements
Most electric ovens have two heating elements – one at the top and one at the bottom. If either of them is faulty, your oven will not function properly. To check, preheat the oven and see if the elements glow red. If they don’t, they need to be replaced.
Dirty or faulty temperature sensor
The temperature sensor monitors the oven's internal heat. If it’s dirty or damaged, the oven may not heat to the correct temperature. Check the sensor, usually located at the back of the oven, and clean it. If it’s damaged, replace it.
Thermostat malfunction
The thermostat controls the oven's temperature. To test it, disconnect the oven from the power, locate the thermostat according to the manufacturer’s manual, and check it using a multimeter.
Selector switch issues
The selector switch controls the oven’s settings. If it’s faulty, the oven may not heat up properly. Use a voltage meter to check the switch for proper function.
Incorrect calibration
If your oven is not calibrated correctly, it may not heat to the desired temperature. Follow the manufacturer's instructions to adjust the calibration for both electronic and manual ovens.
When to consult a professional
If, after trying these steps, your oven is still not heating up, it’s time to contact a professional. A technician can provide a thorough diagnosis and perform repairs that may be too complex to handle on your own.
