Chamberlain 81600 Manual page 39

Operation
Using the Door Control
LOCK
Your remote controls will NOT work when LOCK
mode is active however your keyless entry will
still allow access to your garage.
Activate:
Press and hold the LOCK button for 2 seconds.
The command LED will flash as long as the lock
feature is activated and your handheld remote
control will not operate your door at this time.
Deactivate:
Press and hold the LOCK button again for 2
seconds. The command LED will stop flashing
and normal operation will resume.
MAINTENANCE ALERT SYSTEM (MAS):
Activate/Deactivate:
Command LED
Press and hold the LEARN button. Then press the
LIGHT button. The service LED will flash the
status; Active is 2 flashes and deactivated is 3
flashes.
LOCK Button
39
Service
LED
LEARN
Button
LIGHT
Button