Random lights on then off, when switch is turned off

Devices & Integrations
1

This only happens in my dinning room. I have a Linear WD500Z-1 switch controlling 3 LED bulbs in a light fixture.

This has been working flawlessly for the past year, now all of a sudden with the light off, it will blink on the off…or turn on for a few seconds then off.

When the light is on it does not do anything funny.

I have looked in the ST app and I do not see any events for this light.

All my other switches are GE…could there be some type of compatibility issue??

Any suggestions before I change out the switch?

2

try replacing one of the three bulbs with an incandescent for a while. If it clears up then perhaps the load is barely too low for the switch.

1 Like
3

those bulbs have been in there for over a year without issue. I will put in some regular bulbs to test.

Thanks

4

No loose wiring connections? Getting loose over time due to temp. Hey, I am an electrician so that’s the first thing popped up in my mind :grin:

1 Like
5

I have a switch that does the same thing on LEDs. Is this a dimmer switch by chance?

I have an extra dimmer laying around I intend to swap out. I won’t be able to swap it out until the rain stops here because it’s a basement and I’ll be completely in the dark. I hate working by flash light. :slight_smile:

6

That was the first thing I checked. Popped the switch out and made sure all wires where secure.

So far tonight it has not done it once…can anything interfere with zwave?

7

Does this happen when you hit the switch or does it only happen when you use the app?

8

It happens when I’m doing nothing. Just sitting there…blink.

If light is on it works perfect.

It’s also strange that it only seems to happen after 10:00 at night

9

OK, fine from 8:00 when I turned it off, now at 10:45 it blinks…

IDE shows no events for this switch…guess I am going to try and swap out the switch tomorrow

10

Replaced the switch and problem is solved :slight_smile:

2 Likes
11

I’m having almost the same issue - but the switches are showing events in the IDE:

2016-12-01 7:18:30.362 PM CST 1 day ago DEVICE switch off Basement Lights switch is off
2016-12-01 7:18:15.274 PM CST 1 day ago DEVICE level 29 Basement Lights level is 29%
2016-12-01 7:18:15.274 PM CST 1 day ago DEVICE switch on Basement Lights switch is on
Or
2016-12-01 9:52:27.157 AM CST 2 days ago DEVICE switch off Basement Lights switch is off
2016-12-01 9:52:15.162 AM CST 2 days ago DEVICE switch on Basement Lights switch is on
Or
2016-12-01 3:19:06.331 AM CST 2 days ago DEVICE switch off Basement Lights switch is off
2016-12-01 3:18:59.484 AM CST 2 days ago DEVICE level 1 Basement Lights level is 1%
2016-12-01 3:18:59.484 AM CST 2 days ago DEVICE switch on Basement Lights switch is on

What is intriguing is that the dimmer level is changing - I’m pretty sure it defaults to it’s last set level - which is why I’m wondering if there is some interference possible.

It’s a 3 way switch, so I’d like to avoid replacement as my automation budget is limited - though I’ve heard the GE’s are a little better than the Linears…
Thoughts?