Quick Checks
Check the Power Cord/Breaker
Make sure the oven is properly plugged in and the circuit breaker hasn't tripped. Reset the breaker if necessary. A tripped breaker is a common cause, especially if you were running other high-power appliances at the same time.
Verify Oven Settings
Ensure the oven is set to the correct cooking mode (bake, broil, etc.) and temperature. Sometimes, the oven may be set to 'Sabbath' or 'Keep Warm' mode unintentionally.
Check the Door Seal
Inspect the oven door seal for any damage or gaps. A faulty seal can cause heat to escape, making it seem like the oven isn't heating properly. However, a bad seal is usually a SYMPTOM and not the root cause of NO heat.
Common Causes
Faulty Igniter (Gas Ovens)
Call ProIn gas ovens, the igniter is responsible for lighting the gas. If the igniter is weak or broken, it may not be able to ignite the gas, preventing the oven from heating. You might hear clicking, but no flame. *DO NOT* attempt to manually light the gas!
Failed Heating Element (Electric Ovens)
DIYElectric ovens use heating elements to generate heat. If one or more of these elements has burned out, the oven won't heat up properly. You can visually inspect the elements for breaks or blisters. Use a multimeter to confirm continuity.
Bad Oven Temperature Sensor
DIYThe temperature sensor monitors the oven's internal temperature and relays this information to the control board. A faulty sensor can provide inaccurate readings, causing the oven to not heat correctly. These can be tested with a multimeter.
Defective Control Board/Relay
Call ProThe control board is the brain of the oven, managing all its functions. A malfunctioning control board or a faulty relay can prevent the heating elements or igniter from working. Relays can sometimes be replaced by a skilled DIYer, but control boards usually require professional diagnosis and programming.
Gas Supply Issues (Gas Ovens)
Call ProMake sure the gas supply to the oven is turned on and that there are no issues with the gas line. If other gas appliances aren't working either, there may be a problem with the main gas supply to your home.
Tripped Thermal Fuse
Call ProSome ovens have a thermal fuse that trips if the oven overheats. This is a safety device. If tripped, the oven will not heat. Requires diagnosis to determine WHY it tripped.
When to Call a Professional
- If you smell gas, immediately turn off the gas supply and call your gas company or a qualified technician.
- If you are uncomfortable working with electricity or gas, it's best to call a professional.
- If you've checked the basic components and the oven still isn't heating, there may be a more complex issue requiring specialized tools and knowledge.
- If your oven is a premium brand like Sub-Zero, Thermador, Viking, Wolf, etc., it's best to call a specialist familiar with these high-end appliances.
Safety Warning
Working with gas and electricity can be dangerous. Always disconnect power to the oven before attempting any repairs. If you smell gas, evacuate the area and call your gas company immediately. Never attempt to repair gas lines yourself.
Estimated Repair Cost
$75 - $600 depending on the cause. Sealed system repairs on ovens can range from $400-$700, but component replacements are often less.