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Thermador C301US Oven won't heat after Self Cleaning

Our Thermador C301US built in oven (under-counter) will not heat in any mode (Broil, Bake or conv bake) even though it seems that every other function is working (controls, light, fans, controls,,) We just ran the oven a few days ago through the Self Cleaning process and once it was finished, the oven would not heat up again. I have tried to disconnect the breaker for a period of 5 minutes then reset the breaker and this did not seem to help. I originally thought that maybe the heater element(s) went bad, but it is hard for me to imagine that both the Bake and Broil elements went out at exactly the same time. The unit is about 10 years old and is in excellent condition otherwise. I have read on the web that there may be some sort of High Temperature reset that needs to be done, however it is not clear on how or why this would happen. Is there some other diagnostics that I can do at home prior to calling in the $$$$ Repair person?? Please Help!!

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  • bevtoots Nov 24, 2008

    I have same problem as the person who wrote this email. I just got the electrican out and everything is ok in wiring.All the lights and oven goes on but does not heat up, even on self clean. Can you help us.

    Thanks so much Beverly

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6 Suggested Answers

  • 74 Answers

SOURCE: Faulty bake or broil element

The solution to this problem depends on whether the oven is electric or gas. Electric oven. If your electric oven's bake or broil element isn't working properly, either it isn't receiving electric power or the element or the oven control may need to be replaced. In many cases, the wiring to the elements can be burnt or broken. 1) Be sure the controls are set on the proper setting. 2) Be sure the stove is plugged in and/or check the circuit breaker or fuse that serves that circuit. 3) Call an appliance repairperson or replace the element yourself as follows. 4) Unplug the oven and let any hot parts cool. 5) Unscrew the mounting screws that secure the element bracket to the oven and pull out the element far enough to access its terminals. Note which wires are attached to each of the terminals, then disconnect the wires (pull off the wire clips or unscrew the wires). 6) Take the element to a parts dealer, along with your oven's model and serial number, and buy a replacement (preferably the manufacturer's suggested replacement part). 7) Reverse the process to reinstall. Gas oven. When a gas oven doesn't get hot, it generally means that it isn't receiving gas, the gas valve isn't distributing gas to the oven burner, or the ignition system -- either an electronic ignition or pilot light -- isn't working properly. A common problem with ovens that have a pilot light is that the pilot light has gone out. NOTE: Gas ranges younger than 10 years old have a sophisticated fault code system that governs their ignition. Always call an approved warranty service provider to handle problems with these ranges. Here's how to troubleshoot your range: 1) Be sure the controls are set on the proper setting. 2) Be sure the stove is plugged in and/or check the circuit breaker or fuse that serves that circuit. 3) Check the gas valve to be sure the gas supply is turned on (also make sure the house's main gas valve is turned on). 4) On a stove with a pilot light, make sure the pilot light is burning. If it isn't, re-light as discussed HERE, or in your owner's manual. 5) Adjust the pilot flame (older stoves only). 6) Turn off the gas and unplug the stove (or turn off its circuit at the electrical panel). 7) Clean out the oven burner ports, using a stiff wire. 8) Plug in the stove (or turn on its circuit) and turn the gas back on. Re-light the pilot (if it has one). 9) If the oven still doesn't work, call an appliance repairperson.

Posted on Jan 18, 2006

Amigaman
  • 248 Answers

SOURCE: bake burner

It is almost always a weak bake igniter. These age and will no longer pull enough current through them to allow gas valve to open. If bake igniter comes on and doesn't light, replace it.

Posted on Nov 18, 2007

watugot
  • 290 Answers

SOURCE: OLD GE Wall Oven doesn't heat properly

On these older ovens ther is usually always 120 volts on the elements at all times.
If you check across the element ends with it in bake you should read 240V. If not, there is a problem with the control. With the voltage drop you describe, it sounds like you are losing power on one line of voltage coming to the element.
Post back to let me know what you find out or if you have any questions.

Posted on Nov 24, 2007

  • 1 Answer

SOURCE: Bake element does not heat

After removing the racks, rack rails and the back plate I removed the 2 screws the hold the bake element. Lifting the front of the bake element up and carefully pulling the element out and gently moving the element so the connector clear the hole I was able to disconnect the wire. After testing for continuity with an ohm meter (non found) I determined the element need to be replaced. $37 and 45 minutes total.

Posted on May 29, 2008

kachbibi1
  • 979 Answers

SOURCE: Heating element on upper oven of a wall Thermador Oven

The control switch may be bad on it. If there are 2 elements on the top, they both are not bad at the same time.Check to see if the wires have not burned off the control switch first. Check to see if your breakers are O.K. Turn them both(maybe 3) off and then reset.

Posted on Jan 30, 2009

  • 1 Answer

SOURCE: Thermador double oven / Bake wont work /FC code flashed once

I found I have this exact problem. Same bake preheat issue: I can bake if I set broil first. However, the oven doesn't work if I press bake first. The control board has already been replaced a couple times over the years. Is this another replacement??

Posted on Feb 03, 2011

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Hello Jacob J - Try resetting the range by unplugging it or flipping the breaker off. Wait approximately ten minutes and restart unit. If it proves to be ineffective and oven does not bake or broil contact a professional to move forward accurately. Range could possibly be experiencing an issue with a wiring failure, EOC, sensor probe and/or faulty elements which would need further diagnosing.

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A tech with an electrical meter will need to check through the wiring and see what burnt up...


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" Wish I had read this first. I never would have used the self cleaning option. Thanks for the info!!

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Never use Self-Cleaning!!! It will fry components, melt connectors, and burn wires. If you have violated this rule and an oven no longer works, it is probably not a bad element if neither the bake nor the broil work. It is likely the high heat cut out breaker.

On a Thermador CT 227 double oven, there is a panel on the right side (facing the unit) that is about 3 inches wide and runs from top to bottom held in place by about 6 or 8 screws. Turn off the power, slide the unit out of the kitchen cabinet, remove the sheet metal panel and you will see two high heat cut out breakers. They have a small red button in the center that resets the breaker. Push firmly and you should hear a click. If there is no click, check the unit for continuity. If it is open and the button push does not reset it, the unit may be fried. These breakers trip with high heat and will prevent both elements in an oven from heating. If the breaker is good, you'll have to test the leads to each element and then trace the dead lead to the problem.

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The control switch may be bad on it. If there are 2 elements on the top, they both are not bad at the same time.Check to see if the wires have not burned off the control switch first. Check to see if your breakers are O.K. Turn them both(maybe 3) off and then reset.

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