Neff dishwasher, no lights on?

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  • #76644
    iadom
    Moderator

    Enr:S5453X-GB/74.

    Customer just phoned with this so not been out to it yet.

    Apparently fully integrated, when switched on any programme, pump runs for a few seconds and then machine cuts out, no lights appear on display at any time .

    Any thoughts?

    Jim.

    #399347
    Martin
    Participant

    Re: Neff dishwasher, no lights on?

    I’m pretty sure the Control module (00641159) is the main suspect here.

    #399348
    iadom
    Moderator

    Re: Neff dishwasher, no lights on?

    Thanks Martin, looking at it on Thursday, are there likely to be any obvious signs of damage ?

    Jim.

    #399349
    Martin
    Participant

    Re: Neff dishwasher, no lights on?

    Actually Jim from ones I have changed they don’t always show signs of damage as a rule. Hopefully yours will be burnt to a crisp and obvious…..fingers crossed!

    #399350
    iadom
    Moderator

    Re: Neff dishwasher, no lights on?

    Blown triac on pcb, its the far left, horizontal one.

    Anyone any idea what this triac controls?

    Jim.

    #399351
    Martin
    Participant

    Re: Neff dishwasher, no lights on?

    Looks like it goes direct to the two pin connection directly below so my guess is that it’s probably leads to the dispenser solenoid whatyamathingy?

    #399352
    iadom
    Moderator

    Re: Neff dishwasher, no lights on?

    Hmm, better than it being the water heater assy I suppose. 🙂

    Are the dispensers prone to blowing triacs on these?

    #399353
    Martin
    Participant

    Re: Neff dishwasher, no lights on?

    iadom wrote:Are the dispensers prone to blowing triacs on these?

    Not uncommon for sure.

    #399354
    iadom
    Moderator

    Re: Neff dishwasher, no lights on?

    Changed dispenser and pcb today, all is now fine.

    One question though, the replacement dispenser 490472 did not have the same connectors as the original.

    There is a connector to the bottom left of the old dispenser which I assume is for the low rinse aid indicator.

    I fitted the new dispenser and taped the surplus plug safely, as customer uses Finish 5 -1 tablets anyway I am guessing/hoping that this will not be a problem. 🙂

    Jim.

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