Fridge started intermittently tripping GFCI after fan motor replacement
Most of the refer fan motors I have replaced have been shaded pole, the coil on 1 side, these are fairly safe because if the motor freezes up (pun intended) they do not overheat like some motors do. Without a ground if there is a problem the fan may have 120v on its metal parts but if it is isolated I don't see a problem, I have seen shaded pole motors produce enough EMF or kickback that would trip a GFCI in some cases changing brands solved the problem, I am lucky my state allows for fridges to Not have GFCI , so if changing brands did not work I put in a non GFCI outlet.