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Hi, newbie here, first post so be gentle please! Anyway, been having problems with a Bosch SGS3042GB/03 dishwasher. The timer is sticking generally in the same place. I stripped the dishwasher down and found the “bubble matrix” (large enclosed plastic tube thing on LHS of machine) really blocked up, spent a whole day cleaning that and is now perfectly clean and the little (red) valve inside moves freely as you invert the matrix. I checked the heating element for continuity & insulation resistance which was all ok (though I have had a washing machine one go down in the past as it warmed up). Ditto the motor, that checks out ok. Possibly the machine is not getting hot. I wonder if I could check this by testing that the element is getting voltage whilst it’s running? I’m thinking maybe that if the water is not heating then the cycle won’t advance? Can’t help thinking this is something simple – I can get a new timer but its half the cost of a new machine. Many thanks.
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?
Re: Bosch SGS3042GB/03 – timer sticking
If it’s an older model with a pukka timer, it’ll be stopping for a reason at the same place. Anything, OC heater, duff stat, faulty motor winding and so on can cause it but I wouldn’t be changing the timer, I’d be working out what was supposed to be energised at the point it stops.
Many, many people assume timer or PCB faults when in actual fact, it’s not. Not to cause any offence but, it’s because they can’t work out what’s actually at fault.
K.
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
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
Hi
Complete heater assembly only . No individual parts avaliable from Bosch for this.
Washman
Re: Bosch SGS3042GB/03 – timer sticking
The white stuff will either be limescale or detergent residue.
Bosch only supply that heater as a complete assembly, I listed it here, and you’re correct it’s not exactly cheap!
I can’t see any compatibles or any way to use anything but the original part I’m afraid. 😕
HTH
K.
Re: Bosch SGS3042GB/03 – timer sticking
If you don’t mind K ,I have just stripped one of these down for spares and i have a good 2nd hand heater if you are interested? I could do it for £40?+pnp? It would be the whole heater assembly, its much easier to fit that way if you re intrested?
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
Clicon , the ‘jubilee clip’ is the easy part as the new heater box comes with a screw jubilee clip as part of the kit…..Getting to and removing the complete heater box is the tricky bit !!!
Re: Bosch SGS3042GB/03 – timer sticking
The proper way to fit the heater as trained by bosch is to remove the cabinet fully from the base, I’ve done a few and I can do complete job in 45 minutes, a novice should do it in 90 minutes, the replacement clip for the heater assembly should be replaced by a thin jubilee clip, I would not in any way try to slot the heater into the old housing, if you are going to do a job do it properly and thats why bosch sell it as a complete unit and the run dry switch on the heater won’t be affected either.
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
Outlet pipes are correct well done 😉 nice logic cycles are anywhere between 40mins -2hrs depending on where you set the dial and what temp. You set
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:
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