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[dumbodog00]

A couple times recently my GFI on the back of my H2 has been tripped.  I figured the outlet needed replaced because it was original to the stove (2006).  I replaced it a couple days ago.  Tonight I came home and the GFI was tripped again.  When I reset it, it just tripped again.  I determined it is the pump tripping it.  Does anyone know a possible reason why it could be causing a trip.  I don't know if there is any correlation between when the water temp drops and the house furnace comes on as backup.  Any help would be appreciated. 

[E Yoder]

I'd check the pump electrical connections for a short but it could be moisture. I guess you could splice in a low amp fuse and a swap out for a regular receptacle. GFCI's are pretty sensitive for a moisture prone environment like that.

[dumbodog00]

The GFI is there from the factory and has worked well thus far.  I don't think that moisture is the problem at this point, but I am open to all suggestions.  Thanks!  It seems to remain dry in the area of the outlet due to the heat from the firebox.

[Pointblank]

A gfi tripping usually means theres voltage leaking somewhere. Maybe check the cord and its connections to the pump? Sometimes cords get brittle and can crack when used around high temps like a boiler.

[E Yoder]

Yeah, I've seen the insulation coating get brittle too. You're right, the GFI is standard and normally works fine.