I am answering to my own question, as I spent a bit more time to solve it.
I figured out that the problem was a case problem: Unlike the labels shown in the picture, each command should be lower case: 'off'', 'low', 'med', 'hi', 'light'. With these modifications, my scripts are working.
The last ...

Hi all,
It is the first posting for me on this forum. My apolagies if I make some mistake by posting my question right here
My configuration:
- Domoticz on Raspberry3
- RFXCOM RFXtrx433 USB 433.92MHz
- Faro Barcelona fan/light with UC7076R receiver and UC7080T remote (433MHz)
- Chacon switches

The ...