user manual
Trouble Conditions 
(cont’d)
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 28 
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Other Displays 
dl:  If this remains displayed for more than 1 minute, your system is disabled. 
CALL FOR SERVICE IMMEDIATELY. 
CC:  The system is in communication with the central station for change of function 
or status verification. If this message persists for more than 10 minutes, 
CALL YOUR SERVICE COMPANY. 
FC:  A communication failure has occurred. CALL FOR SERVICE 
IMMEDIATELY. 
OC  The keypad is not receiving signals from the control panel and sees an open cir-
cuit. If this message persists for more than 10 minutes, CALL YOUR 
SERVICE COMPANY. 










