Dead Siemens After Bearing Replacement – WM12P360GB/03

[Raptor101]

Morning all,
Having just put my 13 yr old Siemens iQ300 WM12P360GB/03 back together after changing the drum bearings for the 2nd time (5 years on the last lot) the machine is completely dead with no lights to the display or the on/off button at all. I’ve checked the 13A fuse, wall socket, have it plugged into a different outlet which has been independently checked so I’m assuming it s a power issue inside the machine. Initially, when I took the control panel off again, I found a loose connector due to a broken retaining tab on the lower white plug of the 3 multi-pin connectors at the back of the PCB on the display panel (white, red & black), which I think is power to the PCB. I’ve fixed that in place securely but still get nothing on any displays so I’m wondering whether my handling of the drum in and out may have disturbed a trip power override switch or some such? Anyone any clues apart from pulling the PCB apart and replacing capacitors as I think that’s where my repair talents will desert me and I’m trying to save the £70 bearing set and 4 hrs of my time so far by not junking this one and buying a new one. Wife is not looking best pleased with my mechanical talents at the moment. It is about the 3-4th time I’ve had this thing apart over the last 5 years for a variety of reasons and it’s beginning to get more difficult keeping her away from nearby Miele factory outlet.

[andyjawa]

Motor plug not connected perhaps to motor?. If,since it did work before doing the bearings, you`d have to presume something removed when bearings changed has not been reconnected such as mains suppressor wires OR a bad luck fluke with a failed part such as the expensive pcb which is not that common so not sure what was disconnected – check the grey 3 wire connector block beteen the main board and the digital display board.

[nemonon123]

Thanks for response Andy. It was the 3 brown wire PCB connector that was not seating correctly once pushed back into its proper place.
Now I’ve got it running however, the front concrete blocking is fouling the dispenser drawer though, especially as it winds up through the lower revs for the spin cycle. No clearance between them at rest at all and the plastic dispenser will be no match for the drum and block after a couope of runs. Can’t understand it. The dispenser is positioned correctly according to the locating lugs on the front, the top concrete block bolts are fully engaged in the locating grooves which means that the whole drum unit must be hanging a tad too far to the left looking from the front. The springs are relatively new, as are the drum legs, replaced by me a couple of years back. Maybe the support legs are just too weak to hold he drum in the correct position and let it sag a little, resting against the dispenser draw? 2 of the 3 are on that side. Any clues?

[electrofix]

sometimes drums and frames have more than one place to put the springs

are you sure there are in the original positions

Dave

[andyjawa]

well I suppose if the springs were miss set on the top of the chassis the door seal would look odd / misaligned i.e. the tank relative to the front chassis would be on the twist? Still could be duff suspension legs since they are not that good. Front weights, from memory, are glued on or if not you cannot miss fit so it isn`t that. The worst it could be, which is really bad news, is if one of the suspension plastic tank mountings has sheard – let`s hope it isn`t that! You just have to visually check

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