killavolt
In the Trades
A friend of mine has an inground pool. The last few days the pump has been tripping the GFCI breaker. He reset the breaker and the pump would run for a while and now the breaker won't reset. He replaced the pump, I replaced the GFCI breaker, making sure the neutral load was installed on the correct terminal of the GFCI and that the line and neutral were correctly wired in the panel. I replaced the twist lock receptical, with a 20A 125V (same as before) and the 20A switch. I also replaced the bubble rain tight cover as the gasket didn't look as if it was intsalled "rain tight". The GFCI doesn't trip when the pump is not plugged in. The pool and pump are correctly grounded as per NEC code 2008. The pool pump is on a timer if this helps.
Any thoughts as to what could be causing the GFCI to trip? I took the twist lock pigtail off and installed a regular plug on and the pump runs fine (on another non GFCI circuit) . I taped the twist lock receptical and the switch contacts inside the weather tight box as well to make sure they were isolated from adjacent wires. The pump draws about 18A on a 120V circuit, which is pushing the ampacity of the circuit but it has run this way for about 6 years.
Any thoughts as to what could be causing the GFCI to trip? I took the twist lock pigtail off and installed a regular plug on and the pump runs fine (on another non GFCI circuit) . I taped the twist lock receptical and the switch contacts inside the weather tight box as well to make sure they were isolated from adjacent wires. The pump draws about 18A on a 120V circuit, which is pushing the ampacity of the circuit but it has run this way for about 6 years.
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