SL15J1F (S5444X1GB/23) Neff dishwasher won’t fill, baffled

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  • #85258
    wahee
    Participant

    hi all

    I have a Neff dishwasher, 7 years old. It has decided not to fill.
    I have checked and water pressure is good. Aquastop inlet valve has been replaced. I have checked the connections and both read 240V AC to earth, but not across each other.

    Main motor run constantly and I hear several clicks as if something is trying to start
    The float seems ok and microswitch operates output pump as expected.
    Checked for debris in the filters etc, all clear

    It’s like the machine is ‘telling’ the inlet valve to stay shut. T

    Is there anything else I can check, I really appreciate any help

    #428203
    Martin
    Participant

    Re: SL15J1F (S5444X1GB/23) Neff dishwasher won’t fill, baffl

    Replace the Impellor Jug (part no 00424099) 😉

    #428204
    wahee
    Participant

    Re: SL15J1F (S5444X1GB/23) Neff dishwasher won’t fill, baffl

    hey Martin, many thanks for the reply. I was looking at that, but I though I would get a no water indicator on the panel.

    Just as an update, I tried filling the dishwasher manually using a bucket of water. I now manage to get a little through the spray arms, but really nothing (maybe that’s just the water in the tray being pushed around)

    I’ll order one up and see if it does the job

    cheers

    #428205
    wahee
    Participant

    Re: SL15J1F (S5444X1GB/23) Neff dishwasher won’t fill, baffl

    alrite. changed the jug, bit no better. Could there be an issue with the water softner system. The salt light comes on quite a bit

    #428206
    Martin
    Participant

    Re: SL15J1F (S5444X1GB/23) Neff dishwasher won’t fill, baffl

    Time then to remove the control unit and visually check for component damage. Power unplugged before going in 😉

    #428207
    wahee
    Participant

    Re: SL15J1F (S5444X1GB/23) Neff dishwasher won’t fill, baffl

    hi right will try that next. Although I’m starting to suspect the water softening unit as some water is now coming (or was) and water weakly was coming through spray arms at a dribble, but not through the side fill hole

    #428208
    Martin
    Participant

    Re: SL15J1F (S5444X1GB/23) Neff dishwasher won’t fill, baffl

    I’ve never ever come across issues with water softener so this will be a first. Did you regularly use salt by the way?

    #428209
    wahee
    Participant

    Re: SL15J1F (S5444X1GB/23) Neff dishwasher won’t fill, baffl

    ah right, I would be loathed to just buy a new softener unit as I have already bought an aqua-stop valve so will out the softener unit doen the list ofpriorities. The solenoid on it reads resistance so seems ok.

    as for salt yes ever month or so

    #428210
    wahee
    Participant

    Re: SL15J1F (S5444X1GB/23) Neff dishwasher won’t fill, baffl

    took off the matrix to the water softener.

    in the attached pic, if I blow through hole A then water is cleared through B
    hole C is totally blocked which seems strange


    also the matrix seems grubby at the top, this may only be cosmetic though

    #428211
    Martin
    Participant

    Re: SL15J1F (S5444X1GB/23) Neff dishwasher won’t fill, baffl

    Hole C would likely blow clear if you undid the salt cap first.

    #428212
    wahee
    Participant

    Re: SL15J1F (S5444X1GB/23) Neff dishwasher won’t fill, baffl

    ah ha:) you can see ehay i’m not a dishwasher engineer.

    It’s like something is the dishwasher is keeping the aquastop valve shut. Can I ask if there should be AC across the two wire to the aquastop in normal operation.

    thanks for all your help so far as at least i’m ruling out what the problem isn’t

    #428213
    Martin
    Participant

    Re: SL15J1F (S5444X1GB/23) Neff dishwasher won’t fill, baffl

    wahee wrote:It’s like something is the dishwasher is keeping the aquastop valve shut. Can I ask if there should be AC across the two wire to the aquastop in normal operation.

    Yes indeed.

    #428214
    wahee
    Participant

    Re: SL15J1F (S5444X1GB/23) Neff dishwasher won’t fill, baffl

    just checked the board all is well at least on a visual inspection, resoldered all joints, but no luck , think it’s time for a new dishwasher

    #428215
    wahee
    Participant

    Re: SL15J1F (S5444X1GB/23) Neff dishwasher won’t fill, baffl

    just about to strip the motor out for spare before the dishwasher was going to the scrapper and discovered a very worn 50p piece stuck in the main pump where it meets the motor! Just running main wash now, but hopefully sorted.

    #428216
    Martin
    Participant

    Re: SL15J1F (S5444X1GB/23) Neff dishwasher won’t fill, baffl

    Coins are almost always found in washing machines but not dishwashers. Did it clean up OK?

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