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Re: Bosch SGS43C12GB/19 dismantling advice
Hi Martin,
Thanks ! Actually, in the meantime, I had found a very informative article on WhiteGoods.com explaining the water softening process.Re: Bosch SGS43C12GB/19 dismantling advice
Hi Martin,
I may not have mentioned this sufficiently before, but the fundamental problem with this dishwasher is that sometimes it does NOT finish the wash but “sticks” in a heating/washing cycle – hence why I have been concentrating on the NTC sensor.
I have removed control board for a quick look – nothing obvious.
I then did another run yesterday (without opening door to check spray arm rotation or measure water temperature, so that programmer was not “interrupted”) However, I DID did do temperature measurements during pump-out as follows:_
Phase 1, duration = 12 mins, end temperature 48 deg C
Phase 2, duration = 4 mins, end temperature 32 deg C (is this cold rinse ?)
Phase 3, duration = 11 mins, end temperature >>50 deg C (highest point on thermometer !!)
(Obviously, complete process did end without “sticking” on this run)
So, in order to eliminate it, I removed NTC and tested it:-
50KOhm at ambient, falling to about 10KOhm at high temperature.
So that seems OK (as you correctly predicted !!)
I am now planning to remove control board again, check for intermittency on plugs/wiring, and examine PCB for dry joints in that area.
If that all checks out, I’m struggling to know where to go next !
Incidently, there is a container next to the salt reservoir ( about the same size) and is “filled” with brown liquid. What is that ??
Also, does the matrix retainer (plastic collar inside ) rotate normally (anti-clock to release) ?. I have tried but am afraid that I might break it !!
As ever, many thanks for your help – much appreciated !Re: Bosch SGS43C12GB/19 dismantling advice
Hi Martin,
Did as you suggested and ran a Quick Wash.
In the first cycle, I confirmed that both spray arms rotated alternately every minute. This cycle lasted about 12 mins before it pumped out. (The water DID seem to be hotter than 35 deg).
The second cycle seemed very short (about 4 mins)
The third cycle lasted a long time (about 20 minutes) and I thought that it was largely on bottom spray arm. The water temperature increased to 48 deg (or ultimately even higher) before it pumped out. (I think the other spray arm DID come into play in the latter part of the cycle) The water then was VERY hot !
I’m now beginning to wonder whether this is a control board issue rather than the NTC sensor. Is the extent of each cycle determined by water temperature or only time ? I also notice that pump-out seems to be start/stop and takes 3 or 4 cycles to fully empty – is this normal ? Would appreciate your thoughts on what the next step should be – I’m tempted to get the NTC sensor out and test it in isolation.Re: Bosch SGS43C12GB/19 dismantling advice
Hi Martin, Many thanks for your help. After the removal of the two mounting bolts, does the heater assembly just pull out of the seals ? Or does the circulating pump have to be removed first ? If so, does the pump just pull out of the sump ? As you can tell, I’m a bit confused on this assembly !! I assume that the black unit on the side of the heater assembly is the water diverter – is this usually a mechanical or electrical failure ? Once again, many thanks for your advice !
