Neff Dishwasher – Not progressing through its cycle

[Redseven]

our Neff S5543x1GB/17 dishwasher does not progress through its cycle.

Yesterday afternoon, I arrived home to find that, when switched “on” the pump can be heared pumping out to drain. I thought it may have been due to a leak, and was pumping because the sump float switch was opperated. I pulled the washer out and removced the side cover, but found that the float switch was not opperated.
If I pour a sauce pan of water into the bottom of the machine, and then allow it to be pumped out (which it does successfully), the machne could be reset and then restarted. It completed a full cycle and claened a few items normally, so I refiited it in its normal place.
We filled it up, and switched it “on”.
A few hours later, it had dropped the soap tablet, but not filled with water.

What are the common faults, and where should I be looking?

[Penguin45]

Re: Neff Dishwasher – Not progressing through its cycle

Drag it back out again……..

Remove the plug, the decor door (2 screws on the edge of the door), lower front cover plate and left hand side panel. Remove and clean the hose in the piccie:

Then remove and thoroughly clean the pressure chamber. You will need to pop the water matrix off first.

It all comes to bits:

Hopefully, that will get it going again. In future, rinse any heavy deposits off the crockery prior to washing.

Penguin45.

[Redseven]

Re: Neff Dishwasher – Not progressing through its cycle

Penguin45,

Thanks for the reply.

I’ve tried that, and found no blockages :(.

It’s like it thinks that there is water in it that it is circulating, but there is not any water in it!
I’ve checked that the diaphragm level switch works both mechanically and electrically, and it checks out OK.
I thought the inlet solenoid may have packed up, but I thought that 2.2Kohm was likely to be about right (is that about right??), and I have monitored to see if I’m getting a voltage going to it, but I don’t appear to get a voltage going to it.

To recap.
If I carry out a “reset” by pressing the 55° and the 65° cycle buttons at the same time, then I start another cycle, it pumps remainging water to drain, then the circulation pump appears to be running (I can hear it humming, and if the door is opened, it can be heared sucking), but it goes no further in the cycle 😕

What else could it be ❓

[Redseven]

Re: Neff Dishwasher – Not progressing through its cycle

I’ve been looking at the available parts from NEFFS’s online parts shop, and see a sensor and a switch on the heater assembly. Are either of these likely to be stopping the machine filling?

I’d guess that it should run through a logical sequence, and that either the controller is failing to see a condition that it expects to see, or the controller is U/S.

But I don’t want to spend £120 on a controller to find that the machine still does the same!

Has anyone got any ideas??

[Author]

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