dishwasher – white deposits

[Martin]

Re: dishwasher – white deposits

uoapsdb wrote:Is there nothing I can try myself ? Whats the best way into the machine to check the blocked water level sensor or sump hose as you suggest.

Power off first then panels off 😉

[Trilobite]

Re: dishwasher – white deposits

Looking at the photos, it appears that grease and starchy deposits have built up in the machine. Do you by any chance, regularly use an Economy programme? If so, I reckon that this is where the problem lies. It has probably built up to such an extent, that the transfer pipe has become clogged, leading to low water levels and poor cleaning.

The Bosch Instruction Manual will have a section about checking the tub for a build up of grease and/or limescale, and tell you to run the machine empty on the hottest wash with detergent (or you can use a dishwasher cleaner). You are supposed to run such maintenance washes quite regularly.

I say this because, looking at your photos, the machine does look as though it needs a thorough clean around the door seal areas. Also, is that rust I see on the floor of the tub?

[uoapsdb]

Re: dishwasher – white deposits

Martin – thanks, not far off ‘going in’ now

Trilobite – thanks, yes ‘she’ does use the economy wash a lot, then complains when it’s not spotless.
There is no rust inside, just muck, I’ve given it a clean now.
The idea of the photos was to show that there are white deposits
inside the machine at the end of the wash, this suggests the deposits are in the water during the final rinse doesn’t it ?.
I am trying the hot wash with nothing in the machine as you suggest.

[Martin]

Re: dishwasher – white deposits

uoapsdb wrote:Martin – thanks, not far off ‘going in’ now

You could always use this alternative method????

Ken, why isn’t this one in the Photo Gallery (“The funnier side”)????

[Trilobite]

Re: dishwasher – white deposits

In the name of God!!!!!! 😯

[Penguin45]

Re: dishwasher – white deposits

Heh – ultimate prewash……. Labradors will eat ’til they burst……..

Penguin45.

[Trilobite]

Re: dishwasher – white deposits

uoapsdb wrote:Martin – thanks, not far off ‘going in’ now

Trilobite – thanks, yes ‘she’ does use the economy wash a lot, then complains when it’s not spotless.
There is no rust inside, just muck, I’ve given it a clean now.
The idea of the photos was to show that there are white deposits
inside the machine at the end of the wash, this suggests the deposits are in the water during the final rinse doesn’t it ?.
I am trying the hot wash with nothing in the machine as you suggest.

Well there you go: the (false?) ECONOMY programme is only suitable for lightly soiled dishes – like when Great Auntie Ethel comes round for afternoon tea; or the cereal bowls at breakfast.

It was never designed for spaghetti bolognaise deposits, or the Sunday breakfast fry-up. Your good lady has to be gently guided into using the NORMAL and INTENSIVE/POTS’n’PANS programmes. 😉

Furthermore, low temperature washes might actually cause a build up of greasy deposits in the house drains leading to the septic tank. This may contribute to a blockage.

If your wife wishes to continue using Ecover, allow her – but at least get her to use the hotter, more vigorous cycles. 🙂

[uoapsdb]

Re: dishwasher – white deposits

Martin,
Loved the photo, kids not too impressed when I put the hamster in a hot wash though.

Have taken the side panels off now, please see photos of what look like blockages to me :

http://myweb.tiscali.co.uk/barfblog/gra … G_3174.JPG
http://myweb.tiscali.co.uk/barfblog/gra … G_3183.JPG
http://myweb.tiscali.co.uk/barfblog/gra … G_3185.JPG
http://myweb.tiscali.co.uk/barfblog/gra … G_3186.JPG

Would I be doing the right thing by removing the plastic tube affair and cleaning out ?
Plumbing in 3183 looks blocked also, or is that a filter ?
Any suggestions what to unblock with, not bleach I suppose ?
Any thing else I should look at while it’s open ?
Steve

[gegsy]

Re: dishwasher – white deposits

http://myweb.tiscali.co.uk/barfblog/gra … G_3174.JPG
The water matrix will definately need replacing for starters as its not accesible for cleaning and will cause no end of problems.
I would then look at the antiflood/pressure unit to the right of it, if it is gunged up and you can clean it all brilliant, if not you will need to replace that.
Last and not least you will need to remove and clean the clear ribbed pipe which goes from the metering unit to the sump.

To prevent this in the future ignore what the book says as to loading; scrape the worst off in the bin and then give the plates a quick rinse under tap before loading, this will prevent this build up. Also a monthly maintenance wash as previously mentioned will work wonders 😀

Greg

[Trilobite]

Re: dishwasher – white deposits

gegsy wrote:http://myweb.tiscali.co.uk/barfblog/graphics/IMG_3174.JPG
The water matrix will definately need replacing for starters as its not accesible for cleaning and will cause no end of problems.
I would then look at the antiflood/pressure unit to the right of it, if it is gunged up and you can clean it all brilliant, if not you will need to replace that.
Last and not least you will need to remove and clean the clear ribbed pipe which goes from the metering unit to the sump.

To prevent this in the future ignore what the book says as to loading; scrape the worst off in the bin and then give the plates a quick rinse under tap before loading, this will prevent this build. Also a maintenance wash as previously mentioned monthly will work wonders 😀

Greg

Gegsy,

With reference to the above photo, what is the function of the ‘strange lumpy moulding’, coloured brown, in the upper left-hand corner of the heat exchanger? Is that part of the drain pipe?

[gegsy]

Re: dishwasher – white deposits

Hi trilobite
The area you refer to is the drainage hose ventilation valve. Basically its to prevent airlocks in the drain system. With that much crud in there, its going to cause problems.

Cheers

Greg

[Trilobite]

Re: dishwasher – white deposits

gegsy wrote:Hi trilobite
The area you refer to is the drainage hose ventilation valve. Basically its to prevent airlocks in the drain system. With that much crud in there, its going to cause problems.

Cheers

Greg

Ta Gegsy,

It seems daft to design the mouldings, that will clog and cause problems. Methinks the designers should redesign…

[kwatt]

Re: dishwasher – white deposits

Trilobite wrote:It seems daft to design the mouldings, that will clog and cause problems. Methinks the designers should redesign…

Cost -vs- reward

If the problem is engenders less outlay than the cost after-market then that seems fine, in some people’s minds. It’s also known as “The Ford Equation”.

K.

[uoapsdb]

Re: dishwasher – white deposits

gegsy – thanks for your comments, sorry but I don’t know the names of the parts very well.
I’ve put some numbers on the diagram :

http://myweb.tiscali.co.uk/barfblog/gra … mbered.jpg

Am I right that the water matrix is the plastic set of moulded tubes up the side of the machine ?

If so, there seems to be a major blockage in the matrix at 1 – are you saying this can’t be cleared ?
If not any idea how much this would cost ? Model is Bosch SGS5312GB/12

2 – is this the antiflood/pressure unit that you think may be cleared ?

3 – is this the clear ribbed pipe which goes from the metering unit to the sump ?

4 – there seem to be white crystals here like soap crystals, is this normal ?

[gegsy]

Re: dishwasher – white deposits

Hi
1/ Its inaccessible/sealed
2/ Yes
3/ No, but looks like it may need removing and cleaning. 😀
4/ Should be clear, so not normal.

The ribbed hose in question is accessible from the front by removing the lower plinth (outer door panel off may aid), the hose then is right in front of you.

Greg

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