An oven that won’t heat up is truly a distressing situation. Sometimes even the most trusted Thermador ovens will fail, which can be credited to various issues.
Your Thermador oven isn’t heating up because of one of these reasons:
- Lack of power.
- Unable to start properly.
- Malfunctioning thermostat.
- Damaged controls.
- Amperage problems.
- Damaged heating elements.
- Faulty oven parts.
In this article, I’ll discuss each possible reason why your Thermador oven isn’t heating up like it should, along with corresponding solutions. By the end of the post, hopefully, you’ll be able to identify what’s wrong with your oven and have a way to fix it.
Oven Isn’t Receiving Any Power
Let’s start with the scenario where there’s actually nothing wrong with your oven. Instead, the problem is with the power source.
Here are reasons why your Thermador oven isn’t receiving any power:
- The oven wasn’t plugged in.
- The power socket is damaged.
- The circuit breaker had tripped.
- A fuse had blown.
- The oven wasn’t receiving enough power.
How To Fix
Here’s what you can do to make sure your oven is receiving power:
- Check if the oven is plugged in. The plug may have been slightly dislodged, preventing power from flowing in. If it was, make sure the prongs go inside the socket.
- Try plugging other electronic devices into the power socket. This is a simple way to check if the socket is providing power. If it isn’t, you need to look for another power source.
- See if the circuit was tripped or a fuse was blown. If the circuit has tripped, you only need to reset it. However, if a fuse is blown, you must replace it or have a professional do it.
- Don’t use an extension wire for your oven. Extension wires are unsafe power sources for ovens as they may not provide enough power.
- Look for broken wires. If there are damaged wires, this could affect the power connection and flow. Have those fixed or replaced.
- Use a multimeter. A multimeter will decipher whether or not enough power is coming through the source.
Oven Cannot Start or Turns Off Immediately
It’s possible that the socket is providing ample power and the oven is receiving it properly. Still, it would not start, or if it will, it starts but turns off immediately. Either way, it will not be able to heat up.
How To Fix
The oven door needs to be closed correctly for an oven to start. If the door cannot close, then it may lead to problems.
Here’s what you can do:
- Check if the door is closed.
- If you can’t close it properly, look for crumbs and other objects that may be lodged on corners or sides. These might keep the door from closing.
- Remove the crumbs or other objects.
- Close the oven.
Thermostat Needs Adjustment or Is Faulty
A thermostat is crucial for proper oven operations. It detects the internal temperature of the oven. If it senses the oven is too hot or too cold, it induces the oven parts to add or remove heat. Thus, if it were damaged, oven operations would be affected.
How To Fix
You can adjust your oven’s thermostat by yourself. However, refer to your appliance’s manual while doing so. If you lost your copy of the manual, don’t fret. You can search for it through Thermador’s Find Owner Manuals. You just need to provide your oven’s model number.
It’s also possible that your thermostat is faulty in the first place. If that’s the situation, you would need to have it replaced. It may be best to consult a professional for the repair.
Control Board Is Damaged
The control board is the interface or middle man between your oven and you. It receives and relays your instructions to the oven parts and allows them to heat up. Should there be a problem with the control board, it won’t be able to process your instructions correctly.
How To Fix
If the control board is indeed damaged, that can be quite costly and complicated to fix. Before you rush into that, though, here’s what you can do:
- Reset the oven by turning it off at the circuit board.
- Wait for five minutes.
- Turn the circuit breaker on again.
If that doesn’t work, you should call in a professional. Another scenario when you should consult service immediately is when the oven lights are on, but the display or controls aren’t working.
Circuit Amperage Isn’t Met
Amperage is the measure of the electric current passing through your circuit. For a double oven, problems with the circuit current may prevent the second oven from heating up properly. The required number of amperes won’t be met, or it won’t be the same as the house circuit (as it should).
How To Fix
A vent blockage may cause circuit current problems. Here’s what you should do:
- Check your oven’s vent opening.
- If there’s a blockage, remove it.
- Check if your oven is working correctly.
- If the problem isn’t resolved, seek a professional.
Heating Elements Are Damaged
Ovens may have bake or broil elements. These are the parts most responsible for heating the oven. If it has holes or other damages, electric current cannot flow through it properly. Without current, the oven won’t heat up.
How To Fix
Here’s what you should do:
- Check if the heating elements are glowing red. If they aren’t, the heating elements may be damaged.
- Check for holes or dark spots in the heating elements. These are other indicators of damage.
- Call service. If you see any of those signs, consult home service to help replace the element. It may be too complicated to fix on your own.
Other Oven Parts Are Damaged
Besides the heating elements, circuit, control board, and thermostat, other oven parts help ensure it heats up and works properly. If those parts are faulty or damaged, they also prevent the oven from heating up.
These are some oven parts that would affect heating:
- Malfunctioning convection fan.
- Blown or faulty fuse.
How To Fix
Here’s what you can do to fix broken oven parts:
- Replace convection fans that don’t work correctly. Fans allow heat in convection ovens to be appropriately distributed. In turn, this leads to even and proper heating. If the fan isn’t working correctly, it affects oven function and needs to be replaced.
- Replace blown or fault fuses. Thermal fuses are blown when the oven is overheating. However, it may just be faulty on its own. Either way, replacement is necessary, and you may need a professional.