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Fibaro dimmer 2 turning on by its own

Neo Andersson


Guys, anyone has experienced anything similar?

Dimmer modul that is controlling 4 bulbs, is turning on by its own randomly.

There is a indication that the bulbs each are 200W strong, so that can cause some problems, but it doesn't maka too much sense, that bulbs are turning ON when they are off...

Can anyone assist a little bit please?

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@Neo Andersson 4x200W = 800W, this is high overload for dimmer2. It is only rated for a 250W conventional bulb. But that's not the explanation for the self turning on. 


Things to check:

Parameter 9: State after power failure

The wiring connected to  S1, S2 and Sx should not be longer than 20 meters.

Range test indicator LED, check if it has a good connection to the controller?

Edited by Fabir
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    It turned out that my elctrician badly read the bulb data. Its not 200W it is just 7,5 watt / bulb

    So i read somewhere that too low current is also the reason of such a behaviour.

    Param 9 is okay

    Wiring is 1.5 meter

    Range is okay.

    We have the Neutral wired correctly, so the bypass should not be the problem, or maybe we have to install a bypass anyway, i dont know.


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