Chamberlain MotorLift ML500, Instruction Manual

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Install Protector System™(Optional) – (See accessories)
After opener has been installed and adjusted, The Protector System™ accessory can be installed. Instructions are
included with this optional device.
The Protector System™ provides an additional measure of safety against a small child being caught under a
garage door.
It uses an invisible beam which, when broken by an obstruction, causes a closing door to open and prevents an open door
from closing and is strongly recommended for homeowners with young children.
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Program Remotes
Activate the opener only when door is in full view, free
of obstruction and properly adjusted. No one should
enter or leave garage while door is in motion.
Your garage door opener receiver and Remote Control
Transmitter are set to a matching code. If you purchase
additional Remote Controls, the garage door opener must
be programmed to accept the new Remote code.
To program receiver to match additional Remote
Control codes:
1.Press and release the program button on the side of the
unit (1). The green LED will glow steadily for 30 seconds.
2.Within 30 seconds press and hold the button on the
hand-held Remote (2).
3.Release the button when the motor unit light blinks. It
has learned the code. If the light bulb is not installed, two
clicks will be heard.
To erase all codes from motor unit memory or to
deactivate any unwanted Remote, first erase all codes:
Press and hold the program button (1) on motor unit until
the learn indicator light goes out (approximately 6
seconds). All previous codes are now erased. Reprogram
each Remote or Keyless Entry you wish to use.
Setting the Force
The Force is programmed to operate most doors, however,
if Limits are not able to be set, or the door reverses during
normal operation follow this procedure: Locate the Program
Button (1) on the left side panel of unit (2). Push the
Program Button twice to enter unit into Auto-Force
Adjustment Mode. The green LED will flash slowly. Activate
unit with remote and run the unit to the Open Limit. Activate
unit again to run the unit to the Closed Limit. The door must
travel through a complete cycle up and down in order for the
Force to be set properly. If the unit stops before it reaches
the Open or Close Limit repeat the process. The green LED
will stop flashing when the Force has been learned
Test the Safety Reverse System
The safety reverse system test is important. Garage
door must reverse on contact with a 40mm obstacle
laid flat on the floor. Failure to properly adjust opener
may result in serious personal injury from a closing
garage door. Repeat test once a month and adjust as
needed.
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Procedure: Place a 40mm obstacle (1) laid flat on the
floor under the garage door. Operate the door in the
down direction. The door must reverse on the
obstruction. If the door stops on the obstruction, it is not
traveling far enough in the down direction. Move Close
Limit closer to door
When the door reverses on the 40mm obstacle, remove
the obstruction and run the opener through a complete
travel cycle. Door must not reverse in closed position. If
it does, adjust Limit and repeat safety reverse test.
Place 20kg at the center of the door and ensure that the
door will not move up more than 500mm.
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