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Greetings,
The above machine is just on 3 years old – worked very well to date, although has recently been through a house move and a few weeks of storage.The Symptoms – starts the cycle normally, runs for about 30 min into the programme, then trips the earth leakage protection (RCD?)on the house plug circuits.
On immediate inspection, the tray is full of HOT water (dirty) and the tablet release has been recently triggered – can be found almost unused on the catch shelf on the upper rack.
The fix so far…
The machine has been electrically isolated, but is still connected to the water supply and drain lines. I have removed the side covers and top, and front door kicker strip. No useful access to the pumps/motors is revealed.
I suspect the “box” hinges forward about the door pivots to reveal the gubbins below – am I correct? I have removed the two small screws on the rear junction of the lower tray and the box, and have attempted to unclip the rear catches, but am unable to lift it clear to tilt forward.I suspect the drain pump is faulty, hence the need to get to it.
Any advice on further dismantling and/or possible faults will be most appreciated.With thanks,
Chris BRe: Bosch Classixx Dishwasher – SMS40C12GB/13 Type SI6P1B
it is unlikely the pump is causing your problem. the drain pump is a 2 wire device and has no attached earth.
you state that the tablet has just been released and since the machine has not heated at this point i assume you have it plumbed to hot water otherwise it would be cold
it there any water visible in the base ?Dave
Re: Bosch Classixx Dishwasher – SMS40C12GB/13 Type SI6P1B
[quote=”Baytech”
…On immediate inspection, the tray is full of HOT water (dirty) and the tablet release has been recently triggered – can be found almost unused on the catch shelf on the upper rack….Hi Dave,
no, the machine is connected to cold only, the water in the tray was hot, so that side is working.
On trying to restart the machine after the first failure, the display lit up, showed the remaining time (1:01 on a 1:25 program), a motor/pump tried to start, and immediately tripped the earth leakage.After that, I left it to a service technician as I was at work – he said everything was wet (bull, I had pulled the machine out myself and there were no leaks or wet patches evident). He re-made the supply connections, I’m told (I’ve had to connect two standard hoses as the supply point is really awkward to get at). Whatever he did, he reset the machine, and I tried it again last night. This time I chose the longest “Eco” program (3 hours 25? min) and went to bed. About twenty minutes later, the house plugs went dead, and it was the earth leakage again. I isolated the machine and left it as described – hot water in the tray, and the tablet on the catch tray.
On starting to strip it this morning I have found nothing unusual – all connections were dry, no leaks evident anywhere.
Have disconnected everything I can see, but am unable to separate the tray from the box. I will post pics if they will help.Thanks for your swift response!
Chris BRe: Bosch Classixx Dishwasher – SMS40C12GB/13 Type SI6P1B
if you want a parts exploded veiw go here
http://www.bosch-home.co.uk/store/spareparts/search
Dave
Re: Bosch Classixx Dishwasher – SMS40C12GB/13 Type SI6P1B
Dave,
Thankyou – just what I’ve been looking for!
Within my limited knowledge of electronics, I have checked both motors, and the heater connection – I can’t find a short anywhere. The drain pump was clean and rotated freely.
I’m about to rebuild it – could be interesting getting it down off the saw-bench – it was in partial kit form went it went up there….Chris B
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