Did mine some years ago. Fiddled for weeks trying to get the thing to work without spending. The box has a series of little plastic cogs, and one tooth on mine had worn, so it ended up mistiming and not resetting a micro switch. As I recall. I had to buy a whole soap dispenser unit that included controller. Having said that, it was in 2005, cost me 65 and it is still working.
Bob Wiltshire
July 2012
they can sometimes be repaired and realigned but usually they have to be replaces as a whole distributor unit complete
CK
July 2012
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