GFCI receptacle trips...

…when I plug in the block heater for my tractor. What can cause this?

Any help appreciated.

Short answer is a bad block heater.

Thanks, Greg, I found what I think is the problem just now…a bad block heater plug.

A properly functioning GFCI receptacle :mrgreen:

Yes, I replaced it 3 times and it kept tripping. :cool: Time to install non-GFCI. :stuck_out_tongue: