Errors; Troubleshooting - Regency 4720 Installation Manual

Regency ® Model 4720 Control/Communicator Installation Manual (P/N 150476, Rev. A)
DOOR (1 - 15)
Indicates a door has been left open (or forced open) when using the door contact feature with
commercial touchpads (see Note 2 below).
1 - 80
Indicates which zone is in trouble.
When the RF system is used, the first line of the display will show either LOW BATTERY or TROUBLE.
The second line of the display will show which zone has a low battery or which zone is in trouble.
Note 1: Trouble Audible may be silenced by pressing MUTE, MUTE. Troubles will also automatically silence
when the trouble condition is corrected—the only exception is Day-Trouble zones, which will latch into
trouble until manually silenced.
Note 2: The 4180 trouble output should not be used to indicate DOOR-FORCED, because local door trouble
indication is inhibited when other doors in the system are accessed. Door troubles will be reported and
printed, but local audible annunciation cannot be depended on.

Errors

23.2
TRY AGAIN
This message means either an invalid code was used or the Model 4720 did not understand the
command.
RESTRICTED CODE
The code entered is incorrect for either the touchpad or the function that was being accessed.
RESTRICTED ZONE
A particular zone cannot be bypassed (shunted).
RESTRICTED TIME
Code was not entered within the time window selected during programming.
RESTRICTED DOOR
The code entered cannot be used to open that particular door.

Troubleshooting

24
When troubleshooting this system, it is always best to begin by looking for the simplest possible causes for a
malfunction. Check that all wires are properly connected to their terminals. Check for obvious wiring defects such
as missing insulation, which may cause shorts.
Malfunctions in the system are often caused by problems in the accessories, detectors, and sensors that are attached
to the Model 4720. Make sure that all accessories and external devices are in good working order before you begin
to troubleshoot the Model 4720 Control/Communicator cabinet. Also make sure that the telephone line is in good
working order.
Among the common problems in a Control/Communicator are problems with the power supply. Check that all
fuses are in good working order. Make sure that the battery and its charger are properly attached and receiving
power from the AC line.
Wiring can be checked through simple continuity tests, using your analog or digital multimeter. For 2-wire cables,
disconnect the cable at each end. Next, connect each of the probes of your meter to one of the two (2) wires, and
switch the meter to the ohmmeter functions. You should now see an almost infinite resistance between the two (2)
wires. A low resistance reading means that you have a short somewhere in the middle.
75
Revised 10/98