I recently encountered an issue with my Fibaro Dimmer FGD-212, and I wanted to share my experience and solution in case others are facing a similar problem. The dimmer, configured as node 68 in my zWave network, would briefly turn on when controlled via OpenHAB but then automatically turn off. This was perplexing, especially since other dimmers in my setup were functioning without issues.
After some thorough troubleshooting, I discovered that the problem was related to how the dimmer was responding to commands from OpenHAB. The logs showed that after receiving an ‘on’ command, the dimmer would reduce its level to 44% before turning off completely. This behavior was not observed when controlling the dimmer directly via the connected momentary switch.
I decided to reset the dimmer to its factory settings, which involved holding down the switch for about 10 seconds until the LED began flashing. After resetting, I re-interviewed the device through OpenHAB and reassigned the channel. To my relief, the dimmer now responded correctly to commands from OpenHAB without reverting to the previous faulty behavior.
This experience taught me the importance of resetting devices to default settings when encountering persistent issues. It also highlighted the value of carefully reviewing device logs and understanding how commands are processed in the system. I hope this solution helps anyone else dealing with similar problems with their Fibaro dimmers.