Neff S51T69X2GB/51 dishwasher, blown module

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  • June 6, 2019 at 5:00 pm #95966
    snig
    Participant

    Went to above machine today has blown just behind plug in mains connection by copper coil. Can’t find any faults on heater etc but worried as don’t want to blow a new board. Anyone have any idea what this area of board operates ?

    June 6, 2019 at 8:39 pm #461912
    electrofix
    Moderator

    do you want to post a photo

    Dave

    June 7, 2019 at 8:34 am #461913
    snig
    Participant

    wish i’d thought of that !
    i’ll see if i can find a spare to at least show where i mean

    June 10, 2019 at 5:56 pm #461914
    baron
    Participant

    snig wrote:.Anyone have any idea what this area of board operates ?

    It’s power supply part… who transforms power supply into low operating voltages needed. (power switches)…
    If no other part of PCB it is blown (take measurements on capacitors for free of scc ) than you can ease put new PCB.
    I think that there is something like 7805. I do not have on hands this and picture isn’t quit good…

    June 10, 2019 at 6:20 pm #461915
    electrofix
    Moderator

    not really in focus but gives me a good idea. As Baron says its the power supply chip that lowers the voltage from mains to 12volts or so for the board

    what worries me is why. has it got wet? some Neff dishwashers leak from the plastic base where it joins the stainless tank

    Dave

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