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Smart Home Forum by FIBARO Team

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Unable to turn OFF light with wall switch (dimmer2)





Since today I suddenly cannot turn OFF the lights by using the wall switch, the lights and wall switch are connected to the same Fibaro Dimmer 2 module. It is the room of my 6 year old son, he would like to be able to switch off the light when going to bed. 


I can turn off the lights by:

- Using the app

- Using other wall switch with dimmer 2 thanks to association

- Using a scene

Strangely I only cannot turn off the lights by using the connected wall switch, but I can turn it on with the same wall switch ?


What have I tried so far:

- Reboot HC2

- Soft reconfigure device

- Reconfigure device

- Recalibrate

- Excluded the dimmer 2 and included it later

- Reconnected the wires to the wall switch and dimmer 2 module


General information:

Type of wall switch: momentary switch (using S1 only)

Module: Fibaro Dimmer 2 version 3.5

Lights: Two dimmable Philips light bulbs of 15watt each

Controller: Home Center 2 version 4.600

Errors: none


Any suggestions left after trying all the above?


Thank you in advance.



Edited by kevin
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  • I hope there is someone that can provide a fix.


    Thank you

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    Did you recalibrate the dimmer and checked its settings? Any error notifications in hc2? Did you try other loads? 

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    Were you able to solve this? I have two Dimmer 2 that have started behaving like this the past days, after working flawlessly for several years.


    Edit: I’m using HC3. 



    Edited by CQ1
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