In my VDS Fermax 3311 don’t open the door too. Something is wrong with It. When Opener tries to open, It sounds a click on the interphone but nothing happens.
In my system, there is a voice to advise when open the door but when Opener is connected this voice doesnt appears. It could be normal with Opener, i don’t know.
I am sorry for the inconvenience, but I have to decide whether to return the product and refund and i need to know if there is hope that it is compatible with Fermax VDS.
Update on VDS systems: from a techical point of view, the system is compatible, but we have to implement an intercom profile for VDS systems. As soon as this is completed, VDS will be added to our database of compatible systems. I estimate a completion period of 2 weeks.