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Troubleshooting Guide (cont’d)
Trouble or Error Display Description Action
ADT Service personnel working
on system.
The user is not authorized
to perform any function
until ADT is finished
working.
• Check with your ADT
Service Representative to
determine completion time.
System has telephone line
problem.
Cannot turn on!
Communication line trouble.
A problem exists with the
system’s telephone line.
• Check other telephones in
the facility.
• Contact the telephone
company (if other
telephones do not work) or
your ADT Service
Representative (if other
telephones work) for
assistance.
Time to turn on ‘Group
Description’ or extend closing
time.
This is a “Late Close
Warning.” The operating
panel will emit a steady
tone until the closing time
is changed. If the system
is not turned on or the
closing time extended, a
signal will be transmitted
to the ADT Customer
Monitoring Center.
• Turn the system on.
OR
• Extend the closing time.
Note: You must have an
ID code with a privilege
level of "Can change
temp sched."
Cannot turn on! ‘Group
Description’ must be on first.
Group interlock option is
programmed into your
system.
• The group displayed must
be turned on before the
group you have selected.
Cannot turn off ‘Group
Description’ Schedule locked.
Your system is
programmed with
“schedule lockout” for this
protection group.
• This group can only be
turned off during the
programmed opening
schedule. Check with your
Security Manager to
determine the
programmed schedule.