tripping gfci

[condenser4]

I have a 1/6 hp cont. duty sump in my pond. It has run all summer ,now it trips the gfci at 8 or 4 or 1/2 hour run time.It can be reset immediately. 110volts, 12 ga to the gfci, 12 ga to 15 amp breaker at the panel, the pump draws 4 amps. the only other thing on the circut is a small aquarium air pump, I,ve replaced the gfci with a new one and get the same results. Can anybody tell me whats going on? THANKS

[ October 15, 2003, 12:25 PM: Message edited by: condenser4 ]

 

[vanwalker]

Re: tripping gfci

can it be removed without too much trouble. double insulated or grounding type plug.
not sure if this can be done in place,for a base reading,ohm or meg it. GEO

 

[tom baker]

Re: tripping gfci

The pump has excessive leakage to ground, causing the GFCI to trip. There is no execption to GFCI protection for outdoor receptacles per Section 210.
Does it have a weatherproof is use cover?

 

[bill addiss]

Re: tripping gfci

Where is the GFCI receptacle?
Is an extension cord being used?

Bill

 

[condenser4]

Re: tripping gfci

the gfci is 20 feet from the pump. the gfci is in a outdoor waterproof box and the outlet the pump plugs into is also in a outdoor waterproof box. No ext. cord ,hard wired and in conduit. pump has a grounded plug

[ October 16, 2003, 12:32 PM: Message edited by: condenser4 ]

 

[earlydean]

Re: tripping gfci

I would suspect water in the sump-pump. Maybe a crack in the seal? It doesn't take a lot of water to trip a GFCI. Maybe, when the sump stops, the water will settle in an area not sensitive. Just an idea.

Earl