siemens D/W one minute problem

[iadom]

Enr: SE25M570GB/17

Complaint of sticking with one minute in display then unable to start next programme.

Not been out to it yet, is this likely to be the water matrix gunged up , top left corner?

Jim.

[Penguin45]

Re: siemens D/W one minute problem

Top left, bottom right, round the corner hose…….. 😆

Chris.

[iadom]

Re: siemens D/W one minute problem

Penguin45 wrote:Top left, bottom right, round the corner

Do the Hokey Cokey and turn around….. 😆

[iadom]

Re: siemens D/W one minute problem

Had a look at this machine today.

Less than three years old, slight signs of gunge in all the usual places but nothing excessive.
A couple of things I did notice, not sure if they are normal operations.

Set it to fill, the water came into the fill matrix but it appeared to be filling rather slowly, as if it was plumbed into hot fill.
It was cold fill, very good pressure and all the filters at the aquastop end are clean. The aquastop is fitted horizontally, could this cause any problems?

When the matrix finally filled and the water cascaded over into the tub, almost at once it appeared as though the drain pump kicked in then for a minute or so the fill valve and drain pump were firing on and off in rapid succession. 😕

The machine did eventually appear to fill and then proceeded to wash normally.

Also when I selected RESET, the machine started to drain for a couple of seconds then stopped, it repeated this 3 or 4 times then drained out normally and stopped.

Using reset on all of the Hotpoint clones and most Bosch machines I have seen just drains right out without stopping.

One other thing, the double skinned silver side panels are a real PITA to refit at the bottom:rolls:

Jim.

[Martin]

Re: siemens D/W one minute problem

iadom wrote:The aquastop is fitted horizontally, could this cause any problems?

Not at all and hot fill is fine too provided the pressure is at least 1 bar and not exceeding 60 deg C

iadom wrote:When the matrix finally filled and the water cascaded over into the tub, almost at once it appeared as though the drain pump kicked in then for a minute or so the fill valve and drain pump were firing on and off in rapid succession. 😕

Classic case of blocked transfer pipe to tub!

iadom wrote:Also when I selected RESET, the machine started to drain for a couple of seconds then stopped, it repeated this 3 or 4 times then drained out normally and stopped.

This is quite normal as in this case the machine is fitted with an electronic ‘sicasym’ drain system.

[superfix]

Re: siemens D/W one minute problem

Sounds like the pressure chamber could also be blocked, some have a black plastic insert in them. This can become blocked and operate the overfill s/w. They can be carefully removed, stripped and cleaned or replaced.

As for the pulsing pump, that is normal apparently it’s to try and avoid the impeller getting jammed :con: .

The aquastop should be fitted vertically, but not many are :rolls: .

[nomadPaul]

Re: siemens D/W one minute problem

iadom wrote:Had a look at this machine today.

When the matrix finally filled and the water cascaded over into the tub, almost at once it appeared as though the drain pump kicked in then for a minute or so the fill valve and drain pump were firing on and off in rapid succession. 😕

Jim.

If you get a chance to look at the pressure chamber , take a look at he small red barrel-like float on the RHS . The float is there so that if the machine overfills , this float will lift and switch on the pump. However , if the pressure chamber or hose bewteen it and the tub sump are blocked , the incoming water will ‘back-up’ , causing this little chamber to fill and lift the red float. You’ll know when this is the case because as it fills you hear a ‘Klerdunk klerdunk’ noise .

This also gives the classic ‘1’ in the display and never ending cycle problem because on the rinse cycle , it pumps enough water to drop the level down to a point where it will stop the heater from coming on.

[iadom]

Re: siemens D/W one minute problem

Thanks for all the replies folks. Transfer pipe is very clean indeed.

Paul, when you say float on RHS is that looking from the front. Or do you mean the RHS of the pressure chamber as opposed to the RHS of the dishwasher?

TBH the top left of the matrix had slight signs of gunk but nothing to bad.

The area round the float chamber did appear to be more gunked up than anywhere else.

Jim.

[Martin]

Re: siemens D/W one minute problem

iadom wrote:he area round the float chamber did appear to be more gunked up than anywhere else.

That’s what nomadPaul refers too and indeed the most likely problem in your case. Best to change the whole unit really, I always carry a couple on the van as fuffing around taking them apart and trying to clean them is a bit of a bodge really. 😉

[iadom]

Re: siemens D/W one minute problem

Thanks Martin, will get on it.

Jim.

[iadom]

Re: siemens D/W one minute problem

Forgot to mention that a new pressure chamber did the trick on this one. 8)

Jim.

[Penguin45]

Re: siemens D/W one minute problem

That’s weird – never needed one, even in the most extreme gunged up cases. Switch gone stiff I suppose? They use these “light-action” microswitches.

Chris.

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