Z-wave switch turning on for no apparent reason

Add-ons Bindings
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1

Hi,

I have a small Z-wave network which I control with a Z-Wave.Me ZME_UZB1 controller on a Raspberry Pi 2 and OpenHAB.
It used to run just fine, and at some point I started to have 2 of my plugs/switches turn on for no apparent reason quite regularly. I don’t think I had changed anything when it started. I have other plugs/switches which seem to be ok.
I was using OpenHab 1.6.2, and I upgraded to OpenHab 1.7.1 but that didn’t help.

Now more details.

Definition of one of the items with issues:
Switch sTv “TV” (gTv) {zwave=“4:command=switch_binary,refresh_interval=15”}

It’s a Z-Wave TKB Wall Plug Switch/Meter - UK TZ88E.

The switch turn on at 18:22:

$ grep --color=auto --color=auto 'sTv ' events.log | less
2015-09-03 18:21:49 - sFakeTv state updated to OFF
2015-09-03 18:22:24 - sFakeTv state updated to OFF
2015-09-03 18:22:35 - sFakeTv state updated to ON
2015-09-03 18:22:39 - sFakeTv state updated to ON
2015-09-03 18:22:54 - sFakeTv state updated to ON
2015-09-03 18:23:35 - sFakeTv state updated to ON

Yet no command were sent to switch to that switch around that time (I suppose here that only a SWITCH_BINARY_SET would make it change state):

$ grep 'NODE 4: Creating.*SWITCH_BINARY_SET' logs/zwave.log |less
2015-09-02 17:51:11.212 [DEBUG] [.ZWaveBinarySwitchCommandClass:146 ]- NODE 4: Creating new message for application command SWITCH_BINARY_SET
2015-09-03 08:20:25.218 [DEBUG] [.ZWaveBinarySwitchCommandClass:146 ]- NODE 4: Creating new message for application command SWITCH_BINARY_SET
2015-09-03 08:35:26.213 [DEBUG] [.ZWaveBinarySwitchCommandClass:146 ]- NODE 4: Creating new message for application command SWITCH_BINARY_SET
2015-09-03 21:48:33.177 [DEBUG] [.ZWaveBinarySwitchCommandClass:146 ]- NODE 4: Creating new message for application command SWITCH_BINARY_SET

And I know for a fact it was not turned on manually.

So I’m confused… I suppose it could be the switch itself having issues, but it happens with a different device too: a Z-Wave SwiidInter Cord Switch 11002-SW-ZCS-1. I have another of these cord switch which works just fine. So it doesn’t look like a problem with the slaves.

The controller or the z-wave addon should just be buggy or something, but then again why only 2 slaves going crazy out of 4?

Any idea what could cause this and how to troubleshoot and fix it?

Thanks,
Thib.

2

You haven’t configured any ‘strange’ associations have you? Maybe a motion sensor, or thermometer, or something else, that has now been associated with this device?

3

Hi Chris,

Yes that was it. One of my items (a fibaro RGB used as a sensor) had
associations defined, including for items number I don’t have (e.g. id over
100 even though I only have about 10 items).
I’m pretty sure I didn’t add those manually, so I can only assume it was
setup this way when I received the item. Not sure if this is common (eg
the manufacturer tests the device before shipping it but doesn’t reset it?).

Anyway I removed these associations and it works as expected now.

Thanks,
Thibault.