Do you have a question about the Hörmann FCT3b and is the answer not in the manual?
4-digit selectable numerical codes to access three radio code locations (1-3).
Procedure for modifying the factory-set access codes to secure the device.
Instructions for entering access codes to operate functions and transmit codes.
Procedure for learning a radio code using an access code.
Using the bell/light key directly for transmitting or learning without an access code.