Question about Thermador Ovens
Getting past 400 deg. Elements dont appear to get red hot.
Wekiwa, your TCO, (thermal cutout) probably opened during the high temps in self clean. You will have to remove the back panel and replace it. It should be just under the vent back there. Part number 4450934. You can ohm it out first to make sure, it will show open (no continuity) if bad. This is an easy job, won't take you that long. Kill power to the range before going back there. In doing a little more research on your model, I see there was a service flash where they recomend moving the TCO over to one side so the cleaning cycle doesn't affect the TCO. This may be covered by Whirlpool. You might want to call them and inquire. Catriver..post back.
Posted on Dec 18, 2006
SOURCE: Heating elements do not heat
this problem your having is some connected with your oven shut down thermostat.if that does not solve your prob.next solution would be to check that control board.
Posted on Jun 25, 2007
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
I replaced the relay board for the top oven (the one with the transformer) and it works properly now. My issue was only for the top oven so you probably have to replace both relay boards since both ovens have only the top element working.
318022002 is the part number for the relay board with transformer
318022001 is the part number for the relay board without transformer
Yes the one without the transformer is more expensive for some reason.
The boards are on the top of the oven, I was able to pull out the oven about 75% of the way out of the cabinet and easily get to the boards. Just unplugged the connections and plugged them into the new board.
To get the oven out there are two small screws that go into brackets inside the top oven door. Highly recommend taking the doors off the oven to pull it out, much easier to work with.
NOTE: On my old board I noticed one solder joint that was burned out and I since I already had the new board I just replaced but you might want to check that first and see if just a solder fix gets you working again before you spend $$ on a new board.
Posted on May 13, 2009
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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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