GFI started tripping with celing fan operation
I replaced a 30 yo bathroom exhaust fan at least a year ago. Also installed a mechanical timer at the same time. Everything was working fine since, until recently when the GFI would trip when the fan was running.
I pulled the original GFI which was a pigtailed type unit and replaced it with a made in China Levitron which had multiple line and load terminals. I decided to remove the exhaust fan from the GFI load feed and feed it as a multiple on the line side. My other outlets are still fed as a GFI protected load.
Now for the problem. That worked fine for over a month. No more nuisance trips. Then it just started tripping again when the ceiling fan was turned on. Keep in mind that the fan is being fed from the line side of the GFI, not the load or protected side. A friend who is an electrician thinks the problem is a defective GFI unit. I replaced it today and it is working. Any ideas if something else could be causing this? Thanks.