Neff dishwasher no power after disconnecting water.

[Richard C]

This ones a bit of a long shot but I've just replaced both door springs on my Neff integrated dishwasher (S51m53x1GB). It was working perfectly prior to starting what should be basic maintenance but I had to disconnect the water inlet hose as it wasn't long enough to allow me to pull washer out to allow access to the metal side plates so I could replace the springs. Having replaced the springs & metal side plates, I reconnected the water inlet but absolutely nothing; there seems to be no power to the appliance control panel at all. I've checked the power socket, the plug fuse & tried a reset on the appliance panel but still nothing. I then noticed the inlet valve has a plastic enclosure & a cable which I concluded contains some sort of wired switch (pressure? flow?) to the dishwasher; I've fitted dishwashers in the past but have never come across this valve before. I tried cleaning the filter, bleeding the valve under pressure but still have no power. Now very frustrated as I cant understand how disconnecting the water supply & replacing 2 door springs can suddenly cause power loss to the appliance. Before I junk the Neff & buy a new dishwasher in frustration, can anyone please help with a problem that has totally got me stumped?

 

[denso13]

I then noticed the inlet valve has a plastic enclosure & a cable which I concluded contains some sort of wired switch (pressure? flow?) to the dishwasher;

It's an aquastop which will shut off the water if the hose leaks/splits. It doesn't affect power to the machine though, you'll need to test electrically at various points, including internally, to check that.

 

[foxhole]

Does the machine sit back against the socket ? Had an issue where the rear black insulation caused plug to get warm and melt into rear , with repeated opening of door is slowly pulled the plug loose in socket .

 

[Richard C]

Thanks for the replies; foxhole, the socket is in a separate cupboard & checks out OK, as does the integrity of the plug & cable.

denso 13; I've heard of Aquastop valves but never seen or fitted one before. So, I should still be getting power to the control panel which I thought should be the case? Looks like I'll have to haul the appliance out again & check for any wiring damage but pretty sure I didn't cause any by just replacing the door springs. Final scenario I suppose is that the power failure is just coincidental (it is12 years old), occurring between it's last use on Sunday evening & me pulling it out on Monday morning but I didn't check it still had power before starting. If coincidental, I've probably missed out on my luck & winning the lottery any time soon!

 

[denso13]

o, I should still be getting power to the control panel which I thought should be the case?

Yes, normally a warning light/error code if the aquastop has tripped (no water).

Final scenario I suppose is that the power failure is just coincidental

Don't rule out coincidence, but check all of the wiring.

 

[Richard C]

Problem solved; Bosch, in their infinite wisdom, decided to put plugs on both ends of the power lead instead of a direct connection in through the back. Along with the water inlet hose, the lead is far too short to allow you to pull the appliance out for maintenance access to the side panels. The plug must have pulled out of the back of the appliance yesterday when I pulled it out. A bit of a fiddle getting it all back but at least it's working now & I can stop looking for a new dishwasher.

 

[jj4091]

If your dishwasher has a control panel fixed to the door assembly then the chances are there will be a ribbon cable in the hinge area. As you have been working in that area that is where I would look for a broken wire.

 

[denso13]

If your dishwasher has a control panel fixed to the door assembly then the chances are there will be a ribbon cable in the hinge area. As you have been working in that area that is where I would look for a broken wire.

Sorted.

 

[jj4091]

Sorted.

Yes I was still typing when that was posted and thought I had deleted it but obviously not