Husky Air Compressor Tripping the GFI

[electronman1729]

I have a Husky Air Compressor (2.75hp and 8gal) that just started tripping the GFI in the garage when I turn it on. I heard somewhere about the circuit no opening all the way or something to that effect. I am dumber than dumb when it comes to electricity and motors. Any ideas?

Are you sure your motor size 2.75hp? Are you on 120V or 208V? I ask about the motor size since 2.75hp is not a standard NEMA motor size and even at 208V that is a really larger current draw. You may need to have a dedicated breaker just for the air compressor. NEC 250-148 gives you the FLA ratings for single phase motor. I added a link below for FYI

http://www.cerusind.com/catalog/docu...30_150-148.pdf