Installation manual

Keypad/ Door Station Problems

“Communications Failure”

Home LED blinks and “Communication Failure, ID “ followed by the ID

number is reported upon user sign-in. This means that a Keypad or

Door Station or SEP02 is not communicating with the Comfort panel.

The ID address of the unit which is not communicating is reported. This

ID identifies which unit is giving the problem, according to the table

below:

717

342695

331684

SEP02

673

491651

IDDoor StationIDKeypad

1 Check the wiring to the unit concerned.

2 If Communications Failure happens each time on Security Off, the

power may have been connected to S12V. Keypad power should be

connected to 12V terminals.

Keypad Beeps continuously

If a Keypad is beeping continuously, it means that it has not received

any RS485 communications on the KA/KB lines for the last 6 seconds.

The beeps will continue until any key is pressed or if communication

resumes. The beeping does not occur if the unit can receive

communications but is not addressed by the Control panel, due to

settings in Locations 1674 and 1675.

1 Check that the KA/KB are connected to KA/KB on the Comfort panel,

double-check they are the right way round.

2 If all Keypads and Door Stations beep continuously, it means that the

problem could lie on the Comfort panel or could mean that all of the

KA-KB comms connection are crossed. Check there is voltage 13.8V on

the 12V terminal.

Cannot Sign In on Keypad

If the Keypad is not beeping continuously as described above, it

probably means that communications can be received but the ID is not

set up or voice is not connected.

1 Check that all other Keypads are not in use, for example in Security

Check which does not time out. Press F on the active Keypad to exit.

2 Check that the Keypad/Door Station ID (SW1) and Keypad/ Door

Station selection (JP5) is correctly set for each Keypad and Door

Station.

3 Next check that Location 1675 is set to the number of Keypads and

Location 1674 to the number of Door Stations. The Comfort system

must be reset after changing Locations 1674 and 1675

Comfort Installation Manual