See also:

Activating HDC
Press the button; the LED above the button lights up. ...

For US owners only
The transmitter and receiver units comply with part 15 of the FCC/Federal Communication Commission regulations. Operation is governed by the following: FCC ID: NBG009014A. Compliance statemen ...

Malfunction
Comfort Access may not function properly if it experiences interference from external sources such as mobile phones, metal objects, overhead power lines, transmission towers, etc. If this occur ...