How is the fan control works there? Are those physical switches? And what is the order to turn on or off and then the speed 1-2-3?
My extractor has a sliding switch for the fan speed 0 to 3, each position increases or decreases a level, depends which direction pulled/pushed. How are your 3 separate switches working?
If possible, I would install a switch/relay inside (A Qubino or any capable to do the motor speed control), and hardwire it to switch 0/1 for on/off. The rest of the control would be through Hue Dimmer and some SmartApps, like ABC Advanced Button Controller. Does the Hue Dimmer support press and held as well?
Otherwise is that frame what by default comes with the Hue Dimmer? Or have you bought it separately? I looked at recently those dimmers and they are quite cheap.
So what was your final solution for the fan? I have already replaced the bulbs with some IKEA ones. They are far more better than the previous ones were.
I am looking at the fan as well, but it needs something to handle 250 or 300W.