Water pump runs when switched off.
I've searched the forums but have found this particular problem. My water pump works fine but I can't turn it off. The switches (I have 3 in my motorhome) seem to work properly. The light goes on a...
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That certainly does act like a controller issue. A stuck relay contact maybe. Try tapping on it with a screwdriver handle to see if it breaks loose. That's not a permanent fix, but it will verify the cause if it works.
