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Thread: KBUIT4855E04 Thermador display temp wont hold temp setting reverts back

  1. #1
    Join Date
    Jul 2018
    Location
    NY
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    4

    Smile KBUIT4855E04 Thermador display temp wont hold temp setting reverts back

    Model Number: KBUIT4855E04
    Brand: other
    Age: 6-10 years

    hello all,
    im so glad i found this forum, hopefully someone can help us.
    we have a pretty solid Thermador fridge which i think is same as whirlpool not sure,
    but recently the display panel inside the fridge would make a beeping sound and it would shut off, and fridge would also not work.
    so i had a good friend come and look at it and told us its the main board, so he took the board and replaced 2 relays and one capacitor, now the fridge turns on and no beeping sound, but now the lower part of the freezer gets cold and the top does not, another thing that happens is the display panel when we change the temps to 0 for freezer and 32 for fridge, it reverts back to 47/47, it will not keep its settings.
    im sure oen of you might know what is going on, we were happy at least the fridge works and turns on...
    could this be due to teh other 3 relays need to be changed on the main board?
    could this be something to do with the damper?
    could the actual display panel in the fridge be bad?
    please if anyone can help us we would be so happy.
    thanks you everyone

  2. #2
    Join Date
    Jul 2006
    Location
    Murray, Utah 84107, United States
    Posts
    31,184

    Default

    Quote Originally Posted by RC GLiders View Post
    could this be due to teh other 3 relays need to be changed on the main board?
    It definitely sounds like a board issue. Whether or not replacing the other relays will fix it, I don't know. As service techs it's not cost effective to repair boards and board schematics are not available. There are a few places that can rebuild the boards: corecentricsolutions.com or circuitboardmedics.com
    OWNER RICK'S APPLIANCE REPAIR
    APPLIANCE TECHNICIAN FOR 31 YEARS
    REFRIGERATION SPECIALIST
    ONLINE SERV TECH: ApplianceBlog.com
    CERTIFIED TYPE 1; TYPE 2.....REFRIGERATION SERVICE E.S.

  3. #3
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    Jul 2018
    Location
    NY
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    Default

    thank you for the information, i will look into the link you sent and go from there, hopefully its just the main board

    thanks soo very much

  4. #4
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    Jul 2018
    Location
    NY
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    if i may add, i found these guys on ebay who repair these boards, for a very resnable price, would you trust them, they seem reputable?
    also this would not be a damper issue correct?

    thanks again

  5. #5
    Join Date
    Jul 2006
    Location
    Murray, Utah 84107, United States
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    The problem is just the main board. I took into consideration the main board controls the damper, fan motors, and communicates with the display board. In all my years repairing appliances I've found it's extremely rare to have two parts fail at the same time. Since the repair that was done to the board fixed part of the problem, the main board is ground zero.

    If a board is not available I'll let you know if it's one that can be rebuilt. That's as far as I can go. I don't install rebuilt boards on service calls. Personally I don't believe it's cost effective. If the machine is old enough to have discontinued parts, you might be throwing good $ after bad.
    OWNER RICK'S APPLIANCE REPAIR
    APPLIANCE TECHNICIAN FOR 31 YEARS
    REFRIGERATION SPECIALIST
    ONLINE SERV TECH: ApplianceBlog.com
    CERTIFIED TYPE 1; TYPE 2.....REFRIGERATION SERVICE E.S.

  6. #6
    Join Date
    Jul 2018
    Location
    NY
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    hey thank you so much for your help, i will look into the board then perhaps change 3 more relays and take it from there, if that doenst work then i will send it to get it fixed at a pro shop.
    thanks so much

  7. #7
    Join Date
    Jul 2006
    Location
    Murray, Utah 84107, United States
    Posts
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    Default

    OK sounds good. Keep us posted.
    OWNER RICK'S APPLIANCE REPAIR
    APPLIANCE TECHNICIAN FOR 31 YEARS
    REFRIGERATION SPECIALIST
    ONLINE SERV TECH: ApplianceBlog.com
    CERTIFIED TYPE 1; TYPE 2.....REFRIGERATION SERVICE E.S.

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