Replace the GFCI. They cost 5-10 dollars.
Its also a great excuse to buy a 209 dollar set of insulated screwdrivers and a brand new 200 dollar multimeter and maybe a 100 dollar pair of diagonal cutters. Tell your wife you MUST have them to do the job. You'll break even with calling an electrician but then you will have the tools for the next job. She won't know any better.
Seriously though, obviously all you need is a screw driver. I'll mention that you should turn the main disconnect off AND switch all the breakers off AND tell everyone in the house that your working on the wiring so dont touch the breakers, AND check that the circuit is not live with a meter or test light (or plug a lamp into it, turn it on and see it lit, then turn the power off and see it off) because you do t know what mickey mouse bs the previous owner or tenant did to the wiring that could bypass a breaker) But it's probably the case you already know all that.
Once the GFCI is replaced, I'd the refrigerator keeps tripping it, there's probably a ground fault in the fridge... Ground fault circuit interrupter and all. In that cas I'd replace the one that DIDNT trip.
And dont lie to your wife to buy super expensive tools. She may not know but she will mention it to her brother or father and then your in the dog house.


