GFCI Strange Tripping


Old 09-22-18, 02:54 PM
Thread Starter
Join Date: Oct 2008
Location: USA
Posts: 2,853
Likes Received: 3
GFCI Strange Tripping

I have a wall box with two devices that were installed new, 10 years ago: a single-pole light switch that controls a wall sconce - and a dual 120-V GFCI receptacle. Both devices are on the same 20-A, 120-V ckt. The light switch isn't wired through the GFCI. Recently, about a third of the time that I turn on the light switch, the GFCI trips, without anything plugged into the receptacles. Somehow, I figured that turning on the switch was inducing a spike seen by the GFCI. Both devices were Hubble.

First, I replaced the light switch with a spare Leviton that I had on hand. No change - the GFCI still tended to trip when the switch was turned on. So then, leaving the Leviton switch in place, I replaced the Hubble GFCI with a new Leviton version. Problem solved! Somehow, after 10 years, the Hubble GFCI became touchy. Strange. Thoughts?
Sponsored Links
Old 09-22-18, 04:04 PM
ray2047's Avatar
Group Moderator
Join Date: Mar 2006
Location: USA
Posts: 33,597
Likes Received: 13
GFCIs contain electronics that can and do go bad over time.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Display Modes