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Smart Home Forum by FIBARO Team

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Weird Dimmer + bypass behvaior on 2/3 wiring schema



Hello everyone, I know that this question in its multiple forms is there all over the forums but i was not able to find answer. 


I live in Europe and in totally new building. So I guess I have the 2wiring scheme even though in the box I have access to my N (blue wire). It is because that in that place 1 circuit split to three 3 different lights / switches. 


I would like to control this light 

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 and as it is stated here "The LED can be dimmed with a «Triac for Led» dimmer approved by Flos" 


I tried several schemes with or without by pass and with 2/3 wiring connections and here are the results


3 wiring without bypass - After calibration only on/off function is enabled 

3 wiring with bypass -  After calibration only on/off function is enabled (so bypass does not help here) I installed bypass in the rose where all the wiring meets

2 wiring with bypass - After calibration only on/off function is enabled 

2 wiring withoutbypas -- I can finally use the dimm functions BUT after while light dim itself a bit lets say 80% but status show that it is at 100% 


This behaviour is really weird and I really dont know what to do or how I could debug it bit more 


Could it be that fibaro dimmer is just really bad with LEDs? could you give me any tips ? I also have other lights where it does not work even with bypass where it just flickers. but this light has its own "smart" transformator which could do the mess

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Can you copy the configuration of dimmer?

I think that this "smart" transformator made dimmer to calibrate somehow wrong.

I will compare it with my perfectly working LEDs with bypass. And I think that the best will be 3-wire + bypass and some manual changes after calibration.

However not every LED can be dimmed... It depends of the kind of transformator it has.

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