I have a 7 year old GE fridge that tripped the GFCI yesterday. I reset GFCI, but when the fridge went on it tripped again. When I plug fridge into power strip on another outlet, it seems to be working fine. GFCI is as old as the fridge, never any other problems with it. Any ideas on if this may be a fridge electrical issue or GFCI issue?...