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The word CHECK on the Keypad's display, accompanied by a rapid "beeping" at the
Keypad, indicates that there is a trouble condition in the system.
To silence the beeping sound for "check" conditions, press any key.
Messages displayed by fixed-word keypads are shown in parentheses ( ) after the
alpha trouble message displays listed below.
1. A display of "CHECK" accompanied by a display of "CALL SERVICE" (97) indicates
that a problem exists with the system that eliminates some of the protection. CALL FOR
*Note that zone num-
bers 87, 88–91, 93 and
97 represent problems
with system compo-
nents, which are not
CALL FOR SERVICE
2. A display of "CHECK" accompanied by a display of one or more zone descriptors
indicates that a problem exists with those zone(s)*. First, determine if the zone(s)
displayed are intact and make them so if they are not. If the problem has been corrected,
the display of the zone descriptor(s) and CHECK should disappear. If not, key an OFF
sequence (Code plus OFF) to clear the display. If the display persists, CALL FOR
3. A display of "COMM. FAILURE" (FC) at the Keypad indicates that a failure has
occurred in the telephone communication portion of your system. CALL FOR SERVICE
4. A display of "SYSTEM LO BAT" (BAT), accompanied by a once per minute "beeping"
at the Keypad indicates that a low system battery condition exists. CALL FOR SERVICE.
** Not all systems employ
5. A display of "LO BAT" (BAT) and a zone descriptor, accompanied by a once per minute
"beeping" at the Keypad indicates that a low battery condition exists in the wireless
transmitter** displayed. CALL FOR SERVICE.
6. A display of "MODEM COMM" (CC) indicates that the control is on-line with the central
station's remote computer. The control will not operate while on-line.