With all analog systems, problems related to Ring To Open are usually a wiring issue.
Note: If Ring to Open only fails when approaching your door (Auto Unlock), you can find troubleshooting information for Smart Actions here.
Wiring diagram: Basic setup without doorbell suppression
Cable for the bell is not connected correctly
Check whether you have connected the cable for the bell from the port provided for it to the extra connector block that came with your delivery. Also connect the yellow cable of the Opener to the connector. Now reconfigure the Opener and test the feature again.
No cable is connected to the port
Please check if the cable for the bell is connected to another port:
Remove the cables of the system one after the other until the system does not ring anymore. If you found this cable, it is probably the cable for the bell.
Connect this cable together with the yellow cable of the Opener to the extra connector block that came with your delivery.
Reconfigure the Opener and test Ring to Open again.
Please unplug the flat ribbon cable from the Opener if you are performing any modifications on the wiring and go back to the original wiring of your intercom before you reconnect the cables.
Do not plug the flat ribbon cable back into the opener before you are finished with the reconnection of the cables according to the instructions. This is necessary to prevent any damages to your intercom.
Any modification on the intercom is at your own risk. Nuki cannot offer compensation in case of any damages.