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Re: Siemens turns itself off

Much appreciated, thanks Martin.
It has now started turning itself ON!. Think it has taken on a life oi its own….

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Re: Siemens turns itself off

Hi Martin – no, the floor is very even.
This evening I opened the door and switched the machine on. As I watched, after about 10 seconds it turned itself off.
The door was still held open so Im assuming its not the door switch.
It seems to be the program switches themelves along the top of the door that are misbehaving, and I suppose the electronics for them are underneath, attached to what is called on the Siemans parts list the Panel Frame. But that is £160 plus delivery and Im beginning to think that after many years good service that sort of money may be better put towards a new replacement

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Re: Siemens turns itself off

A further development this morning: After the program had been selected but before the ‘start’ buton had been pressed the ‘delay start’ display counted itself up to +10 without me touching it.

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Re: Siemens stops at prerinse

Success! Looks like it was indeed the heat/circulation pump causing the problem – it was heating and pumping ok but for resasons unknown something connected with it was stopping the water inlet from triggering. Don’t think it was a blockage, more an electrical issue. Anyway it has been replaced and – so far – has worked perfectly every time. A word of praise here for Siemens customer service who were very helpful. Also many thanks to Martin for his guidance and all who made suggestions, I’m very grateful.

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Re: Siemens stops at prerinse

ah, thats interesting….I’ll give that a try. thanks Allsorts

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Re: Siemens stops at prerinse

No…things have improved and it now works properly more often than not ( and the drain pump does sound much happier) but I’m afraid that quite regularly it STILL fails to trigger the water ingress after the initial draining, unless I interrupt it by opening the door….its very frustrating

Anything more I can try?…or is it time to get a professional in to have a look – will check your recommended engineers –

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Re: Siemens stops at prerinse

Have fitted a new drain pump today. The most immediately noticeable difference is the new pump sounds completely different to the old one, which by comparison does sound a bit rattly. Non-return valve and impellor cover both checked and seem fine. Am going to run the programs over the next few days and will report back.

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Re: Siemens stops at prerinse

Thanks for that, Ill check both of those when i swap the drain pump over. Will report back .

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Re: Siemens stops at prerinse

right!…here goes

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Re: Siemens stops at prerinse

Hi Martin

I have followed your very helpful advice and run some cycles, checked the circulation, and watched the water travelling around the pipework. I havent made any progress towards a remedy but I have been able to get a little closer to the cause ( I hope)

I’ve decided its easier to understand If I turn the problem completely on its head and look at when it works rather than why it stops, so let me describe the problems as follows : This machine works perfectly – every time, without fail – from beginning to end, on every program without any issues whatsoever, and there seems to be nothing wrong with any of the parts. However it will ONLY work properly if I open and then close the door at a particular point at the beginning of the cyle. That’s all, just open and close the door again.

From studying the cycle it seems that what SHOULD happen is that at the start the drain pump hums for a 30secs or so and water is pumped out, then there is a different hum for 30 secs ( circulation pump?) then the aquastop lets in water, the little flow meter goes round and every thing is fine.

What ACTUALLY happens is that the aquastop does NOT activate. At that point the drain pump comes back on for 30 seconds then the machine fails with the 2 error codes mentioned.
It is during that second draining that I open and close the door – and that off/on switch seems to trigger the missing impulse to the Aquastop because if I do that whilst the pump is trying to drain it the valve opens, water pours in and everything is fine

My guess is that its not the Aquastop thats the problem, its the signal it should be getting thats the problem .

Any clues here that help towards a diagnosis?

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Re: Siemens stops at prerinse

Excellent, many thanks, I’ll check the circulation side of things next

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Re: Siemens stops at prerinse

Hello again .
Ive run some checks on the drain pump – firstly by pouring water coloured with food dye into the bottom of the machine several times then starting a program – I can see it whooshing through the drain hoses without a problem each time.

Ive also removed the pump altogether and had a look – the impellor moves freely and the sump and pipes seem fine.

Do you still think its a drain pump problem? …in which case it may be time to bite the bullet and try a new one as you suggest.

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Re: Siemens stops at prerinse

Thanks Martin, I’ll check over it again and report back, though from what Ive seen so far it always pumps out without a problem – in fact very often thats the only thing it DOES do!

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