User`s guide
50  MONITOR ISM™ LCD Keypad User's Guide  21-0375v4.2 
LCD Error Messages 
The following section contains a 
comprehensive list of error messages that may 
appear on the LCD user log on screen for 
MONITOR ISM. The condition responsible for 
each message is indicated below. 
Power Failure: AC Failure.   
System Trouble: Main Panel Tamper, 
module Communications, module Substitution, 
module Tamper, Fuse Trouble. 
Battery Trouble: Panel or module battery low 
voltage or missing/disconnected. 
Phone Trouble: Phone Line Voltage Trouble. 
Report Trouble: Digital Dialler 
Communications Trouble. 
Area in Test: Walk Test or Holdup Test In-
Progress. 
Program Lost: Configuration Lost. 
Program Error: Error in Configuration on 
Main Panel, Error in Configuration on module. 
HSC Comms: Alarm Communications 
Trouble. 
HH 
∗ MM: Configuration communications in 
progress (denoted by "*"). Times are normally 
denoted by a colon (":"). 
If a trouble condition persists, contact your local 
representative to service your system. 
Trouble LED 
The Trouble LED on   
the LCD panel may   
be activated when the following system 
conditions occur: 
System Tamper, Battery Trouble, AC Failure 
(Flashing), Phone Line Trouble, Report Delay, 
Time Lost, Time Changed, Program Error, 
Fuse Trouble, module Trouble, module 
Program Error, Misc. (Test Failure), HSC 
Trouble. 
System Status Trouble 
The following conditions may appear when 
viewing the system status: 
System Tampr, 
LoNoBattery, 
AC Failure, 
No PhoneLine, 
Report Delay, 
Time Lost, 
Time Change, 
Program Edit, 
Prog Error, 
Fuse(s) Fail, 
Pod Trouble, 
Pod Battery, 
Pod ProgEdit, 
Pod ProgErr, 
HSC (alarm communications) Trouble 
"POD" refers to a "module". (Point expander, door 
controller, keypad, etc.). 
If any of these trouble conditions persist, contact 
your local representative to service your system. 
Error Messages and Trouble Indications 










