Hi,
Where should I start to look? We have our own well. About 60 meters deep. The pump is hanging on about 50 meters depth.
It is hanging on a stainless steel wire. De pump is grounded, with its own local ground rod. De pump is powered to its own ELCB Nominal current from the pump is 10A.
I noticed several times that the connection to the the floater switch sometimes makes a "humming" sound. I stripped the wires again, and renewed the "Waco" connectors. Sometimes (also strange, why sometimes?) the sound is back. The floater operates a contacter, and the contacter operates the pump.
Also recently, sometimes the ELCB is off. I did not pay much attention to this, I justed switched it on again. When I use the test button on the ELCB it works.
Recently, the pump was running, and I touched the stainless steel wire on what the pump is hanging. I got a really bad tingle. I know that the tingle you receive is usal not fatal when the ELCB remains on, but, for sure something is wrong. I am planning to lift the pump this weekend.
I think it is unlikely the cable is damaged, on the other hand, is it likely the pump itself is fault?
Suggestions are welcome!
Peter.