In my newly finished basement I have the a dedicated circuit running to the bathroom 15 amp GFCI. From the load of the GFCI I have five light fixtures (one over the shower) and an exhaust fan. Three light switches control all of the previously mentioned lights.
When the fan is running, when turned off it will occasionally trip the GFCI. It happens once every ten times or so. It only happens when the fan is turned off. It doesn’t matter if the lights are on or off, it still happens.
I tried swapping the GFCI with a different 15 amp GFI, I tried swapping the light switch that controls the fan (the fan is on it’s own light switch). I even tried swapping the fan with a different model fan that uses less amps (.9) and it still happens randomly.
Is there anyway to stop the tripping other than tearing my wall apart to run a line to the fan light switch?