Replace you GFI outlets as soon as they start acting squirrely (wonky) ... they don't last that long and they can't be fixed . Get the GFI off any circuit with a motor ... when the inspector isn't looking replace it with a non-GFI .
The fool who wired our office had the refrigerator on the circuit with the GFI in a hall bathroom .
It was OK for a few years but suddenly the refrig. started " malfuncting" ...going off ...Bought a new refrig. and low and behold ...it weren't a bad refrig ... it was the bad GFI outlet in the hall bathroom .
Although GFI's are required in certian locations ... they can be more trouble than they are worth .
Gary