I have a slow leak somewhere in my air line plumbing (which I possibly should not have installed in the walls...), This causes my air compressor to cycle maybe once or twice a day to refill the circular network of air lines.

Every few days the compressor throws the 20 amp dedicated 120V circuit breaker. Compressor is an IR Garage Mate, 2HP, 20 gallon, about 2 years old. Air filters are clean, pump oil is maybe 2mm above the 'fill bubble', i.e. a tad overfilled.

Any ideas why the breaker is getting thrown?

Thanks,