AT&T Door Phone Controller - Manual (Page 78)

Troubleshooting Procedures
Table 7-1. Troubleshooting Procedures
Trouble Possible Cause Possible Solution
LED “off” constantly Check power connection. If power connection is good,
then return for repair.
LED “on” constantly Brown-out condition or software Unplug and plug back in.
frozen.
LED blinking more than four Internal software error; may still Unplug and plug back in; if
times a second work. problem continues return for
repair.
Talkback volume, but no Volume control turned down or Verify setting of controls and
speaker volume DIP switches incorrectly set for DIP switches.
mode of operation.
Speaker volume, but no Volume control turned down. Verify setting.
talkback volume
No page or talkback volume Shorted or open speaker lead Remove short or open.
connection.
Unit disconnects after a Check forced disconnect Change time-out (option
certain time time-out selection. selection).
Dial tone heard from the DIP switches incorrect for mode Verify Mode of operation.
speaker of operation. Telephone system Program telephone system for
returns dial tone after Door no dial tone on this extension.
Phone goes on-hook.
Cannot hear your own voice DIP switch incorrect. Correct.
in telephone ear piece
Plugged wires into wrong jack. Correct.
Station mode seizes line then Forced disconnect timeout set Enter Option Selection Mode
disconnects before AT&T to low. (##3), and enter new Forced
Door Phone Controller is Disconnect Timeout Duration.
accessed
Station line plugged into J2. Correct, move to J1.
Cannot access AT&T Door J1 and J2 swapped. Check connections and correct
Phone Controller in trunk if needed.
saver mode
Getting door-ajar callback Bad door ajar switch. Fix or adjust.
when door is actually closed
Open door ajar switch wiring. Fix.
7-2 Troubleshooting and Maintenance