Well, chucking a perfectly good compressor is a waste provided I can solve the problem cheaply. I appreciate the info on the load, but.... On that same circuit was a freezer and a mini-fridge. Why would they not trip the GFI if it was only 15 amp? The first time I ran the compressor it ran for about a minute and a half and got to 80 pounds pressure then cut off. I originally though it was the cut off switch was mal-adjusted, but found that it had tripped the GFI. Every other time I tried to run it it tripped within 5 to 10 seconds. I did unplug the freezer and mini-fridge thinking it was too much of a load, but as I said it tripped within 5 to 10 seconds. Why the change from the first try to the others? Motor getting warmed up, issues in the motor? Can it be fixed without swapping the whole motor? Thanks....