Hi. I’m having a GFCI tripping problem - my outdoor Christmas lights are going off when the GFCI trips.
I have a GFCI-protected outlet in the garage which is wired to two downstream outdoor outlets. A Honeywell Z-Wave Plus Plug-in Outdoor Smart Switch (39346) is plugged into each outdoor outlet. This is a Jasco switch and is identical to the GE outdoor smart switch and to the one Jasco itself sells. The Christmas lights are plugged into the Z-Wave Outdoor Switch.
I put up our Christmas lights last Weds 11/21. They worked fine with the Z-Wave automation for two days, then the switches went offline Friday 11/23 3:20 PM. They both went offline at the same time. Turns out the GFCI tripped killing power to both switches.
I reset the GFCI yesterday and the switches were immediately available again to the network. The SmartThings controller turned them on at sunset yesterday and then off at 11 PM. This morning both switches are offline again.
It was raining on 11/23 when the GFCI first tripped and it was raining again all last night, so maybe the tripping is weather-related.
I bought the house earlier this year. It is about 25 years old, but I think the GFCI outlet was installed about 10 years ago during a major landscaping project.
What to do here? On my earlier thread about this same circuit, GFCI, and a fountain pump (link below), some people were mentioning potential problems of Z-Wave switches tripping upstream GFCIs. On other we searches, people were mentioning the possibility of a slight current leakage during rainy weather that could trip the GFCI. I’ve also read that more modern GFCIs are less susceptible to nuisance trips.
Does anybody have any ideas on how to make these Honeywell Z-Wave Outdoor switches work reliably with upstream GFCIs in rainy weather? I sure would hate having to revert to old-fashioned dumb timers.