Reply to "Can A TVS help on a 120AC circuit?"

HOSO&NZOGR Forum Member

I'm not an electrician but it occurs to me that over time moisture can get into the switch box and cause a film to develop on the switch housing causing a small current leakage path to the grounded mounting screws. Should this happen the surge that occurs when the fan is turned off may be suficient to bridge the gap with enough power to trip the GFI. The solution would be to replace the switch with a good quality one and install a seal gasket behind the cover plate. I am of the opinion that any time a GFI trips something needs to be investigated.

9/20/122:39 AM

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