Faulty water supply on an ACE Celebration 480 (2005). Pump tested separately and ok. Pump light comes on when taps are lifted (switched on), but when pump is plugged into external socket - does not work. No voltage showing on circuit tester at ext pump socket. I suspect a fuse problem but don't know where to start looking!!
Best way follow the wires from the back of the water inlet unit it could be in line fuse or the spade type as used in cars most situated under the seat/s
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