I have the Fermax 3393.
I followed the instructions in the app and tested several times (reconnecting, deleting and findingdevice again, wired everything before plugging in the opener, after plugging it in…) yet no opening signal is ever received when testing with both configurations.
I find suspicious that in the wiring scheme for 3393 the app is asking to connect the Nuki red wire to “wire 6” in my intercom. There are only 5 wires in 3393.
I assumed it would be the 5th one (since it is not mentioned in the other connections) but this did not help either.
Anyone has any ideas? I thought this would be an easy analog 4+N system - whatever that means - and could be set up in no time. But I cannot find any info in the forums with steps from someone who has managed, which is strange.
Thanks in advance!