BOSCH SMS 50E02UK/01 strange fault

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  • January 16, 2014 at 3:31 pm #79044
    chitts
    Participant

    Been to this machine today and am a bit flummoxed.When switched on the rinse aid and check water lights flash for a few seconds then nothing.Trying it again the lights flash again and stay flashing but no main display. Switched off and on once more, no lights and a few seconds later relay clicks from main board and full display, all works fine!
    Customer says it’s been doing it on and off for a few weeks.
    Any clues?
    The machine isn’t heavily used either.

    January 16, 2014 at 4:32 pm #407704
    Martin
    Participant

    Re: BOSCH SMS 50E02UK/01 strange fault

    chitts wrote:?…….and a few seconds later relay clicks from main board and full display, all works fine!

    I think you’ve answered your own question here. 😉

    January 17, 2014 at 1:28 pm #407705
    chitts
    Participant

    Re: BOSCH SMS 50E02UK/01 strange fault

    Thanks for replying Martin, but which part of my description has the answer?
    Customer has called today and said same thing has happened. Did one wash OK, no go this morning!

    January 17, 2014 at 2:12 pm #407706
    Martin
    Participant

    Re: BOSCH SMS 50E02UK/01 strange fault

    The main board from what you tell us I’m thinking. 😉

    January 17, 2014 at 2:19 pm #407707
    timdowning
    Participant

    Re: BOSCH SMS 50E02UK/01 strange fault

    A bit of a long shot… have you tried plugging it into a different socket. You can get weird faults like this with iffy points.

    January 18, 2014 at 7:07 am #407708
    chitts
    Participant

    Re: BOSCH SMS 50E02UK/01 strange fault

    Thanks guys. I’ve checked the socket and the machine end connection,but my thoughts are also leading to main board fault. Having not had a problem with this series I want to be as certain as possible before replacing a major component.

    January 18, 2014 at 8:10 am #407709
    Martin
    Participant

    Re: BOSCH SMS 50E02UK/01 strange fault

    I don’t suppose that,at the point where the display is off, a simple tap of the main board would bring it back to life? Thus confirming the board at fault.

    January 18, 2014 at 9:23 pm #407710
    nomadPaul
    Participant

    Re: BOSCH SMS 50E02UK/01 strange fault

    Is this a new style model ? Remember that if you get a control module , it may need programming .

    January 18, 2014 at 9:33 pm #407711
    Martin
    Participant

    Re: BOSCH SMS 50E02UK/01 strange fault

    I just checked and it is programmed. 😀

    January 19, 2014 at 10:40 pm #407712
    admin
    Keymaster

    Re: BOSCH SMS 50E02UK/01 strange fault

    dry joint on pcb

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