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Thread: Board battery?

  1. #1
    Senior Member piroska's Avatar
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    Default Board battery?

    My washing machine remembers it's cycle progress, even after a power cut, a long one.
    What would power that? LIke a BIOS battery?

    All I can find is stuff about the processors and stuff, not what is used, capacitors or a battery?
    Ex-pctek

  2. #2
    VoidMaster
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    Default Re: Board battery?

    Possibly some sort of set-up with an eeprom, electrically erasable programmable read only memory.

    Just a guess, a battery backup is more likely, but if you can't see one then that's all I can think of.
    It's not the least charm of a theory that it is refutable. The hundred-times-refuted theory of "free will" owes its persistence to this charm alone; some one is always appearing who feels himself strong enough to refute it - Friedrich Nietzsche

  3. #3
    Senior Member Paul.Cov's Avatar
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    Default Re: Board battery?

    If it's old enough, there could even be an elctromechanical timer working behind the scenes... a bit like my old dishwasher.

  4. #4
    Senior Member piroska's Avatar
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    Default Re: Board battery?

    No this is our flash new washing machine. Don't know if I could see one, not taking it apart to look.
    I'm just curious, it retains it for hours, we have had 2 all day power cuts, one I forgot about and machine was still able to resume when the power came back.

    Husband says capacitor but that long? I think battery. The one in my motherboard is 10 years old now, still hasn't needed changing...
    Ex-pctek

  5. #5
    VoidMaster
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    Default Re: Board battery?

    Depending on the power drain Super Caps can last a long time.
    It's not the least charm of a theory that it is refutable. The hundred-times-refuted theory of "free will" owes its persistence to this charm alone; some one is always appearing who feels himself strong enough to refute it - Friedrich Nietzsche

  6. #6
    VoidMaster
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    Default Re: Board battery?

    Also, of course it could just be standard flash memory.
    It's not the least charm of a theory that it is refutable. The hundred-times-refuted theory of "free will" owes its persistence to this charm alone; some one is always appearing who feels himself strong enough to refute it - Friedrich Nietzsche

  7. #7
    Senior Member piroska's Avatar
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    Default Re: Board battery?

    Yes.
    That is the question.

    No-one can tell me apparently, not even Bosch who just keep asking me stupid questions
    (What is my serial number, what fault does it have etc)
    I clearly stated I would like to know what specifically enables it to remember the setting.
    Ex-pctek

  8. #8
    Computer "Specialist" Agent_24's Avatar
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    Default Re: Board battery?

    Try humouring them with the serial number, maybe they need it to look up the exact model and tell you the right answer...

    Otherwise, you'll know for sure if you open it up and take a look, or get lucky enough to find a service manual that provides the information.

    Another idea might be to Google for spare controller boards for your model machine, or see if you can find a tutorial video of someone repairing one, etc. Maybe you'll find an accurate photo of the board somewhere and if you see a battery or supercapacitor, you'll know.

    Let's hope they don't continually log wash cycle state to flash memory or it'll be dead in 5 years like a Tesla.

  9. #9
    Senior Member piroska's Avatar
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    Default Re: Board battery?

    Quote Originally Posted by Agent_24 View Post
    Try humouring them with the serial number,
    Another idea might be to Google for spare controller boards for your model machine, or see if you can find a tutorial video of someone repairing one, etc. .
    Done all that
    Ex-pctek

  10. #10
    Computer "Specialist" Agent_24's Avatar
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    Default Re: Board battery?

    Quote Originally Posted by piroska View Post
    Done all that
    You'll just have to have a look inside I guess, if you really want to know.
    Non-system disk or disk error. Replace and strike any key when ready.

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