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Re: Bosch SGS3042GB Problem
Take a look at my thread on this exact model that’s 10 years old and that I’ve recently had problems with. All cleaned up and running like new!
IMO would say that it’s your heating element in the “instantaneous water heater” that’s playing up. Sounds grander than it actually is – I replaced just the element. The element gets 230v to it pretty much as soon as you switch on. What’s happening with yours is as it heats up it expands a little and shorts out tripping everything. Next time it starts off “cool”, heats up and goes again. Reckon you will find that soon it won’t heat up at all. Anyway read my thread and any problems just ask. New element and a good clean is probably all it needs.
Cheers
Re: Bosch SGS3042GB/03 – timer sticking
FIXED! And cleaning like new! A learning curve for me I’ll admit. I ended up investigating the water starvation and found the “grey pipe on the left” 90{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d} blocked with scale – we live in a hard water area. Happy wife, so much so she let me go and buy a TomTom with the money I saved!
The “grey pipe on the left” – behind the front panel at base:
Also stripped the plastic assembly that feeds the above pipe. Cleaned everything by dosing with bicarbonate of soda then adding a good slug of vinegar, nice and gentle on the plastic, that and an old toothbrush! Also used a bit of Limelite on the real stubborn bits.
Re: Bosch SGS3042GB/03 – timer sticking
Well the wifes been washing up the old fashioned way for a while now! Seriously I’ve done my fair share with the dishwasher not working but am nearing the time when I’ll have to get a new one I think just to keep her quiet. Loathe to do so as the rest of the machine is in such good condition. I’ve had some replies suggesting water starvation and I’m heading towards that. Last chance for this machine I think! A few things I’ve done tried.
Started off with the timer not rotating and me thinking that was the issue but turned out to be the element not heating the water to then move the timer on.
Element was burnt through so have replaced that. Thinking maybe that water starvation might have contributed to that in the first place, as in not enough water flow over the element?
So with the element fixed everything is heating up and the timer goes through it’s full cycle. BUT the stuff is not getting clean! To be honest I noticed tonight that near the end of the cycle there is a “hot” smell in the kitchen. Gritty mugs with a “film” on other stuff.
I found the plastic matrix at the start of all this clogged solid with the little “float” at the top not moving. That is now 100{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d} clean with the float moving freely.
Removing the little screw in the “well” exposes what I think is the impeller? This as you can see is clean. Rotating it with your finger and it doesn’t what I would call spin freely, should it? It almost feels as though its “sprung” as in you move it with your finger and it springs back! What drives this impeller?
Accessing the impeller:
The impeller:
Assuming this is the circulating pump motor? It runs fine when powered up, if I stick my finger in via the “well” it turns the motor and vice versa – nothing feels blocked and I can feel that the “blades” are clean etc.
Turning the motor:
Feeling the pump “blades”:
One last thing, not sure if, when I put the machine back together that I put the “3 pronged” piece that feeds the spray bar up the right way? I have by the way cleaned all the spray bar components thoroughly:
Many thanks for any help.
Re: No Hot Water – Bosch SGS5342GB/17 HYDRO SENSOR
I managed to change my heater element on it’s own ok without having to replace the whole instantaneous hot water unit – though I know some people say its easier to do so! Ended up basically laying the machine down on its front face and taking the bottom off for access. Don’t know if any of the pictures in my thread will help. The base at the back is simply screwed on. At the front I had to dismantle the door hinge gear.
Looking though like I’ve got to go there again as it seems to have water starvation issues!
Re: Bosch SGS3042GB/03 – timer sticking
Sounds a good shout. Wife says that some mugs get clean others not. Presuming the pump motor is the one to the left of the element in my photos above? It runs nice and quite with no balance issues and seems to check out electrically. Oh well, in I go again to try and find the water route – to see if blocked and to try and get to have a look at the impeller. Any tips on the quickest/easiest route to the impeller? By that reckoning then I wonder if lack of water flow contributed to the element packing up in the first place! Cheers for that.
Re: Bosch SGS3042GB/03 – timer sticking
Getting the hump with this thing now! Element now in and getting hot aok and cycle completes ok. BUT STILL STUFF IS DIRTY – brown residue in bottoms of mugs and a sticky “film” on most things. Bubble matrix is spotless and the little red float moves freely. I’ve had all the spray arms out, unclogged them and run the hose through them so they ARE clear. Don’t know what else to look for???
Re: Bosch SGS3042GB/03 – timer sticking
This is going to sound stupid but how do I tell how much water comes in (to the base)? It all seems quite “wet” in there if I open the door mid cycle as in water is running off everything.
Again, how do I tell if the spray arms are turning – as I can’t open the door whilst its running to see. They turn freely enough by hand so I guess it’s water pressure that “spins” them?
Just been out out to check the spray arms for blockages – thinking if blocked then maybe they won’t spin and found one or two of the holes blocked by white, hard chalky scale. So will try another load now that they’re clear (stuck the garden hose up them and shook out all the bits). If that’s no better then I’ll investigate what feeds the spray arms.
Re: Bosch SGS3042GB/03 – timer sticking
All that work and its not quite cleaning properly! Not bad but would like to get it back to how I remember it. Everything’s nice and hot when you open it up after the cycle has finished. We’re using “Finish Powerball” all in one tablets. Asked the wife to describe how it was cleaning now and she’s said “Cups are still a bit gritty but they always were“. I KNOW they used to come out better than this. Also noted some food residue in the bottom which the wife reckons used to get mostly washed away (its porridge residue that was left in a kids bowl but the majority was scraped out before loading the washer). Also tops of mugs in the top rack have like a gritty residue. Any ideas? Many thanks as ever!
The food residue left after the cycle:
Gritty “slurry” left in top of mugs after cycle:
Re: Bosch SGS3042GB/03 – timer sticking
Thanks for that Kelland and everyone else who replied. Dishwasher 90{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d} back together after fitting of a “new” element. Got it running out in the garden at the moment with most of the cover panels off, its gotten hot and is past the 6 o’clock point where it used to stick. A couple of downers – I managed to BREAK the on/off switch clips in lifting and shifting it so need to get a new one. Also on the “matrix” I MAY have two pipes crossed over. I’m assuming as its German (i.e. logical) then the outflow pipe (to the house drain) is the one nearest the back of the machine if so I’ve got it right!
Getting the element, a story to maybe aware of! I didn’t realise that the part I was buying wasn’t new until it arrived. Managed to dissolve some small deposits of limescale with some magic descaler at work as I was worried about hot spots. The vendor was fair when I called though and offered a refund if I wanted which is the main thing. A case of we agreed to disagree as in my opinion the site didn’t make it clear. (It checked out ok at about 24ohms). Reckons I’ll get 5 years out of this element, so I’ll post again in 2016 and let you know if that was right! If buying parts for older models just check you’re buying new. Cheers.
p.s. As I finished this post it had nearly finished it’s cycle! Anyone know roughly how long a cycle is on one of these?
Re: Bosch SGS3042GB/03 – timer sticking
I ordered a new element ONLY from within the UK yesterday for £34.28 inc p&p. To be honest I didn’t fancy replacing the whole unit as at least one of the plumbing connections has a pipe type clip like you get on the car CV gaiter – where you get it as tight as you can then do a final crimp. Fingers crossed this will fix it. Thanks for everyone’s help, much appreciated.
Just out of interest in terms of “as new” prices UK Whitegoods were the cheapest I could find as well. Others ranged up to the £90 mark.
Re: Bosch SGS3042GB/03 – timer sticking
Yes, definitely the element. Finally got it out (you need 3 hands) and its burnt black and encrusted with limescale etc. Open circuit on the meter and infinity on the megger. Only problem now is getting a new one. I can buy the whole “Instantaneous heating element” which is the element I have inside an expensive looking plastic housing for about £80. All I want is the element – looks loke a standard one out of a washing machine etc. Part numbers on it are:
Bleckmann 230V 2150W 120900 21045 LV
On the black rubber seal bit is stamped “1731006013
I’m assuming the white stuff on the element and the “shield” is just crud out of the water and not some type of heat transfer compound?
Thanks.
Re: Bosch SGS3042GB/03 – timer sticking
Thanks for that K, I’m now steering further away from the timer. I powered her up again this morning and first ran the “pre-rinse” program 3. It started at 10.08hrs and finished at 10.26hrs with timer turning seemingly properly for this cycle (dial moves from position 3 to the stop point at 12 o’clock).
Then went for program 2, the “normal 65 degC”, started at 10.26hrs. Dial moving round then at 10.42hrs I heard the soap dispenser draw open and eject the tablet. Opened the door and found the tablet intact, 90{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d} undisolved and water cold inside the washer.
Suspecting the water wasn’t heating up I attached a digital voltmeter across the heating element and started program 2 again. After a short while I’m seeing 230v across the element. Opened the door and again water appears cold. I have previously checked the element (when cold) for continuity and it was seemingly ok BUT have just checked again – with the megger set to 500V I get 0.01 Mohms. With the ordinary meter set on either the 200ohm or 2Kohm range I get nothing across the element – just indications that the resistance is higher than 2K.
At the moment with it running its sticking pretty much where it always did just befor the half past point as in the first picture. Looking like the element?
p.s. The wife reports “sometimes it would work and sometimes it would get stuck (the dial)”. As an aside her friend refers to household circuit breakers as “clicky things”
Re: Bosch SGS3042GB/03 – timer sticking
OK, I had a couple of helpful emails (independent of the forum for some reason) by prople who’ve read my first post so thanks all for that. I’m at a point where I can’t decide whether its the timer or not. Will the timer just advance its way round (if its ok) OR in order for it to advance does it need various inputs, from I guess thermostats etc?
I’ve taken the dishwaher outside (under cover) and set it upon a table with water supply, drain and RCD supply as I was fed up lying on the kitchen floor. With the side panels off and it running I’ve been trying to figure it all out. Not 100{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d} sure but it seemed to be getting stuck (or at least staying at one point for a long time)at about 25 past on the dial. Giving the couple of micro switches on the right hand side a flick seemed to kick the timer round a few degrees. Still the timer I wonder?
