In article .com,
Peter M wrote:
Does anyone know what could be causing the RCD to trip when I switch
the pump off? I am guessing that the pond pump is faulty, but why does
switching it off trip the RCD?

I'd start by checking inside the switch housing to make sure it's still
dry and clean. The travelling part of the switch mechanism may be hitting
damp etc one way, but not the other.

--
*Some people are alive only because it's illegal to kill them *

Dave Plowman London SW
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