ADT Security Services 8112 - Manual (Page 51)

Maintenance and Service
This security system requires very little maintenance,
however, you should test the system weekly to ensure
it is working properly. A test schedule and
maintenance program can be arranged. If you notice a
change in operation during normal use or testing, call
for service as soon as possible. Do not attempt to
repair the control panel, command centers, or detectors
yourself.
How to Clean the Command
Center
If your command center gets dirty, apply a household
glass cleaner to a clean cloth or paper towel and wipe
the surface. Do not spray any liquid directly onto the
command center. It could run inside the case and
damage electrical circuits.
YOUR ALARM COMPANY IS
CALL BEFORE TEST___________________