Bosch S9J1B keeps pumping endlessly

[andyjawa]

[You could try the following . Turn the power off remove the left hand side cover and you should see a near 6″ vertical red or black plastic rod towards the front of the appliance rod at the bottom.This is the emergency flood rod which is at its bottom via a grey arm on top of a piece of polystrenne acting as a float, If the machine floods its base, though you said it hasn`t, the float floats upwards moves the rod upwards and it triggers a micro switch which turns the drain pump on whether the door is closed or open so long as the machine is switched on all that happens is the drain pump runs forever. That micro switch OR the unit it is attached to is faulty. BUT why the triac blew is a different matter and whether anything else on your circuit board is damaged is an unknown.Sometimes gently moving the rod up and down temporarily sorts out the micro switch enough to prove the point.

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