Why would a Z-Wave module turn ON but not OFF!?!?

Community Playground General Discussions
1

So this is a wierd one. I have a GE Appliance Module in my barn, on the far end of my z-wave network. The device shows as an appliance module, but what’s wierd is it TURNS ON fine when I click the ON button in Vera under that device. I see the light click on almost instantly. YET, when I attempt to turn if OFF, it won’t turn OFF!?

Whats the difference in an ON/OFF command with regards to distance etc? Is there a difference? How can the light module be so responsive when I click ON, yet when I try OFF, no go.

Any ideas?

2

on is more important than off so they boost the signal… ???

Don’t know.
Seems odd

3

Thanks :slight_smile: that’s gotta be it! ::slight_smile:

It has been giving me polling errors saying “Failed at: Getting the version” but like I said, I click ON on vera and bang, it turns right on. Off just aint happening. I also tried to repair the network and update neighbors, but no go on the OFF command…baffled!!!

4

Maybe the amount of data that has to be transmitted for “off” is more than “on” and if the node is a little bit far away then perhaps “off” gets more transmission errors???

5

Should be same amount of data:

The byte sequence is very similar to the byte sequence needed for switching on or off a device with one exception . Byte 9 is no longer restricted to the values 0 and 255. These are the allowed values

•0×00 – Switch off
•0xFF – Switch on (the level vil be restored to the level before the dimmer was switched off)
•0xXX – Dimming (possible values: 0×00- 0×63)

From http://www.digiwave.dk/en/programming/the-z-wave-protocol-in-csharp-part-3/

6

My guess is RF interference from the powered light. If the unit was near the end of the Z-Wave transmission range, the increased RF interference even if slight from the light is probably interfering with the signal. I’d try to put another device to act as a repeater between the two if you can and see if that helps, or test by bringing the controlled device closer to your controller.

7

thanks, I’ll give that a shot by removing the light from it or by taking a long extention cord and moving the light away from the module to see if that solves it. Thanks again!