- Joined
- 27 Sep 2004
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Recently changed a consumer unit for dual split RCD unit. Also fitted a DP switch to isolate an exernal socket where they have a pond pump and filter plugged in. It was spurred straight off the ring from a socket.
Anyway everything meggered ok so off I went.
Few days later they phone complaining that on a few occasions the rcd has tripped when operating the dp switch. Go back and find that it appears the pond pump is faulty so disconnected it. Outside socket and wiring meggering abut 8M. Also checked to see if there was a slight nick in the neutral behind the switch catching on the galv box when operated, all looks ok. Also put the meter on the circuit whilst operating the switch and it never picked up a short.
They bought a new pump plugged in and now after a few days it is tripping RCD again. It appears to only do it when switching the dp switch OFF. they have also operated the switch numerous times without the pump plugged in, all ok. I am going back on Saturday to take another look, but at bit of a loss now s the cause. I'm hoping the new pump is faulty, but just wondered if I could be missing something?
Cheers
Anyway everything meggered ok so off I went.
Few days later they phone complaining that on a few occasions the rcd has tripped when operating the dp switch. Go back and find that it appears the pond pump is faulty so disconnected it. Outside socket and wiring meggering abut 8M. Also checked to see if there was a slight nick in the neutral behind the switch catching on the galv box when operated, all looks ok. Also put the meter on the circuit whilst operating the switch and it never picked up a short.
They bought a new pump plugged in and now after a few days it is tripping RCD again. It appears to only do it when switching the dp switch OFF. they have also operated the switch numerous times without the pump plugged in, all ok. I am going back on Saturday to take another look, but at bit of a loss now s the cause. I'm hoping the new pump is faulty, but just wondered if I could be missing something?
Cheers