Triping gfi outlet

[casetractorfarmer]

Hi i keep triping the gfi outlet my truck block heater is pluged in to i tried replacing it and it still trips. Worked fine all winter tell now.

 

[pattenp]

Sounds like the block heater has developed a problem.

 

[justsam]

Hi i keep triping the gfi outlet my truck block heater is pluged in to i tried replacing it and it still trips. Worked fine all winter tell now.

Is there an extension cord used from the GFI to the block heater? If so, unplug the block heater from the extension cord and check, just to make sure it is not the extesnsion cord, (and it probably is not).

If you have a multimeter, check from eack blade of the male plug on the block heater to the round ground conductor. Using DC resistance you should see an open between either of the flat prongs and the round ground conductor. If there is leakage here it will trip the GFI.

 

[wyliesdiesels]

I will add to the extension cord theory that if the cord is sitting in water it could cause the GFI to trip. I have seen this happen before!

 

[Aceman]

Did you replace the block heater or GFCI?

 

[casetractorfarmer]

Gfci i replaced tried a diffret extension cord same thing block heater is less the a season old

 

[jhelrey]

It's like my sump pump. I removed the GFCI outlet it was plugged into and put a normal one in. Why? Because, if my basement has water rising, I damn well want the pump to keep on pumping regardless of how deep that water gets.

 

[wyliesdiesels]

Gfci i replaced tried a diffret extension cord same thing block heater is less the a season old

Sounds like the heater might have melted internally!

It's like my sump pump. I removed the GFCI outlet it was plugged into and put a normal one in. Why? Because, if my basement has water rising, I damn well want the pump to keep on pumping regardless of how deep that water gets.

Motors should not be on GFCI outlets. And obviously the pump will loose power if the water reaches the outlet and causes a line short!