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Thermador oven MCM255 heats very slowly and has difficulty

Getting past 400 deg. Elements dont appear to get red hot.

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6 Suggested Answers

catriver
  • 878 Answers

SOURCE: Our oven's heating elements will not come on althought the display seems to work correctly.

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

  • 35 Answers

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

barkencoa
  • 3463 Answers

SOURCE: OVEN DOESN'T GET HOT

You probably have a faulty element if it is a fan oven

Posted on Nov 18, 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: fridgiaire Gallery series Model GLEB30T8CBA lower elements dont work

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

  • 8 Answers

SOURCE: Thermador SC301T heating elements not working (top

Its the thermal safety switch. When it trips - it cuts any power from reaching BOTH elements. Open the oven door - at the top wehere the oven latch is - remove the long black panel. In the middle - on the right is a small cylindrical switch...push down on the top - in the very center...it will rest the switch (like a circuit breaker) and then reassemble. Just did it on mine (2nd time) and it fired right up. Good luck

Posted on Dec 11, 2009

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