Question about Thermador SC302T Electric Double Oven

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My Thermador SC301T oven has following problem: Did the self-cleaning cycle. Upon completion (well not sure it completed what it was doing) kept getting an F7 error reading...could not get it to go away. Turned off breaker box - turned on (have done a few times now). The oven is LOCKED and thus can't open the door. How do I clear the lock that is on it and get it to operate again?

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  • Thermador Master
  • 2,605 Answers

Hello, I just saw you actually had created your own post, but not until after I had replied to your question from an earlier post of mine. This is how I replied...

Unfortunately the only way I know to open the oven door when in the lock position and it is inactive is a clothes hanger method. With the odd exception of resetting the house breaker which initiates the start-up watch-dog sequence...this rarely works, though it's worth a try.

This of course is an exercise in patience as it will most often take many attempts to pull the lock to the right while pulling the door forward at the right moment so it opens.

I can possibly provide the service manual, however it is too large to attach here so you'd need to provide an email address I can send it as an attachment.

I'll watch for your reply. Please confirm your model number as they are not all the same and the service guides vary depending on the model number.


Macmarkus :)

Posted on Nov 09, 2010

  • 7 more comments 
  • Mark MacDonald
    Mark MacDonald Nov 09, 2010

    Hope it's not too late, I should have said "pull the lock latch to the left" duh, sorry it's been a long day.

    Macmarkus :)

  • dano3250 Nov 09, 2010

    I was so frustrated that I called Thermador........they gave me another 1-800 # for a possible recall on the unit.....and low and behold - there is!! We have model #SC301T. From what I understand the unit "overheats" while self-cleaning and then basically goes crazy with the F7 error code that you can't get to stop!!
    In the past we've already had the relay board and display head replaced (more than once!!) so not exactly sure if it is possibly the same parts that will be replaced or something else. It has always done this while self-cleaning - makes you not want to clean ;-)
    If you could email us the manual it would be greatly appreciated!!

  • Mark MacDonald
    Mark MacDonald Nov 09, 2010

    Sure thing, I won't be able to send it until tomorrow since I don't have access to my PC right now. Yes many of them had reworks to the display head and control which also included harness, but it depended on serial mumber of the "SC" series ovens.

    Talk to you tomorrow.


    Macmarkus :)

  • dano3250 Nov 10, 2010

    Called the authorized repair company....have to order the part. Called back and said that being the oven is still locked it must be something else - oh well, of course!!! Now am not sure what to do!!

  • Mark MacDonald
    Mark MacDonald Nov 10, 2010

    Hi Dano,

    As I mentioned previously the door must get unlocked really before you can move forward since the lock and the hi-limit are place in behind the grill.

    You'll likely have to try bending a metal coat hanger to pull it to the left while pulling forward on the door at just the right time.

    The oven will likely need to be pull forward slightly and that too requires the door being opened since the screws holding the oven in place are typically located along the frame down the sides of the door opening.

    If you're lucky you will be able to reach the hi-limit to reset it via the grill removal...again only once the door is opened.

    That should be pretty clear in the service manual I sent you via the email attachment on page 38 which essentially illustrates this may need to zoom in, but it is in the manual.

    I'll watch your post for the progress and see if you require further assistance, good luck.


    Macmarkus :)

  • dano3250 Nov 11, 2010

    Called Thermador again in pure frustration......then they decided that this particular unit is NOT a recalled unit. After some negotiating I got them to agree to send an authorized tech to diagnose the problem - at their cost ;-)
    The tech and I finally got it unlocked...........long story short now it does not operate at all!! The tech was on the phone with Thermador and they don't know either. We've had the realy board replaced 3 tmes - they "think" it could be that again - no guarantee of course. Tech is curious why the relay board keeps going out - me too!!!
    Another glitch - called Thermador to order it - the part is discontinued (probably because it never work - my sarcasim only; so, what to do now????? Thermador DOES NOT CARE!

  • Mark MacDonald
    Mark MacDonald Nov 11, 2010

    Hello again,

    I just saw your post and the steps you've taken thus far. I just want to clarify a statement you made..."The tech and I finally got it unlocked...........long story short now it does not operate at all!! "

    Does this mean everything is completely dead ( no display and therefore no function ) or it does display but does not respond to any command...these are big differences and very important in the diagnosis.

    Also do you know if the tech checked the switches on the lock upon opening the door ? It looks like this image here...

    The other issue is the info you where given, specifically..." Another glitch - called Thermador to order it - the part is discontinued " I have that control on hand (but I'd need you to reply with the answer to my first inquiries above)

    I'd be cautious and try to rule out simpler and less expensive components before changing this control, but I'm also at quite a disadvantage not knowing what's been done.

    I can tell you how to check the lock switches easy enough...but again this may be an exercise in futility if this has been done.

    Oh well, this how regardless. You may need to zoom it in. It is also located on page 50 of the manual I sent.

    For the latch motor...

    Hope this helps, but I'll watch for your reply regarding details of where you're at. I have most of these parts should you require them.

    Good luck.


    Macmarkus :)

  • Mark MacDonald
    Mark MacDonald Nov 11, 2010

    Let me try that images didn't appear for whatever reason. If it fails this time just refer to pg.50 of the service manual I sent you.

    For the latch motor...

    Macmarkus :)

  • dano3250 Nov 12, 2010

    The display board is lit. Everything works (including the interior light) EXCEPT the bake and broil function. It displays (i.e. it displays "bake, preheat, on") and then it clicks like it is trying to turn on and then clicks again in a few seconds but after that nothing occurs. One other thing that we don't believe is correct is the timer. It clicks own on time and at 60 seconds beeps once. When it gets t the end of the time it beeps 4 times - I believe previously it continued to beep until you turned it off.

    The tech seemed to have check the switches, etc. once we got it unlatched. He talked about a tod (?), etc.

    What do you think? I too do not want to order a part that isn't going to fix it either.



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