Chamberlain LiftMaster PREMIUM Series Manual page 24

Adjustments
1
Program the
Travel
Without a properly installed safety reversal system, persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing garage door.
• Incorrect adjustment of garage door travel limits will interfere with proper operation of safety reversal system.
• After ANY adjustments are made, the safety reversal system MUST be tested. Door MUST reverse on contact with 1-1/2" (3.8 cm) high object (or 2x4 laid flat) on
floor.
1.1 1.2
Press and hold the
Adjustment Button until
the UP Button begins to
flash and/or a beep is
heard.
1.5 1.6
Once the door is in the
desired DOWN position
press and release the
Adjustment Button. The
garage door opener
lights will flash twice
and the UP Button will
begin to flash.
Press and hold the UP Button until the door is in
the desired UP position.
NOTE: The UP and DOWN Buttons can be
used to move the door up and down as needed.
Press and release the UP Button. When the
door travels to the programmed UP position, the
DOWN Button will begin to flash.
1.3
Once the door is in the desired UP position
press and release the Adjustment Button. The
garage door opener lights will flash twice and
the DOWN Button will begin to flash.
1.7
Press and release the DOWN Button. The door
will travel to the programmed DOWN position.
Programming is complete.
24
1.4
Press and hold the DOWN Button until the door
is in the desired DOWN position.
NOTE: The UP and DOWN Buttons can be
used to move the door up and down as needed.
If the garage door opener lights are flashing 5 times
during the steps for Program the Travel, the
programming has timed out. If the garage door opener
lights are flashing 10 times during the steps for
Program the Travel, the safety reversing sensors are
misaligned or obstructed (refer to page 22). When the
sensors are aligned and unobstructed, cycle the door
through a complete up and down cycle using the
remote control or the UP and DOWN buttons.
Programming is complete. If you are unable to operate
the door up and down, repeat the steps for
Programming the Travel.