I had to reset all my switches, sensors and dimmers. The problem with the Fibaro devices was that the procedure written down in their manual is not functioning. I write an email to Fibaro and got the next answer.
Procedure of resetting of FIbaro DImmer and Relay Switch it :
- Turn off powe supply,
- Hold B button
- While holding B button, turn on supply
- Hold B button for 5 sec (In relay you should hear click sound)
- Release button and turn off and onn power supply.
This procedure is working properly and rule 5 is very important.