LiftMaster 902LM Wall Control Panel Instruction Manual
- June 1, 2024
- LiftMaster
Table of Contents
LiftMaster 902LM Wall Control Panel Instruction Manual
MODELS 902LM 903LM
OWNERS INSTRUCTIONS
The two and three garage door multi-function control panel is designed to
replace multiple door control buttons on LiftMaster Security garage door
openers. It can be used as a replacement stand alone unit or in conjunction
with the original factory door control buttons. Never connect more than two
control panels or door control buttons to any one garage door opener.
INSTALLATION
Product may be mounted directly to wall board or, for pre-wired installations (as in new home construction), it may be mounted to a single gang box. In either case the installation surface must be smooth and flat.
The door orientation goes from left to right, and wiring is as follows:
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Left Door – Door A
Wire white wire to White-1 and red/white wire to Red-1 -
Middle Door Door B
Wire white wire to White-2 and red/white wire to Red-2 Note: Model 902 LM will only have A and C terminals. -
Right Door – Door C
Wire white wire to White-3 and red/white wire to Red-3
NOTE: If replacing existing wall controls, labeling the existing wires with masking tape might be helpful (i.e. Door A, Door B, Door C).
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Strip 7/16″ of insulation from one end of bell wire and connect to the corresponding two screw terminal on back of door control by color. Figure 1. White to WHITE and red/white to RED. Be careful to wrap the exposed wire tightly around the screw and tighten. The exposed wire must not come into contact with exposed solder points. The Mylar insulator is there to prevent this from happening. Do not remove this insulator.
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Run bell wire up wall and across ceiling to motor unit. Use insulated staples to secure wire in several places. Do not pierce wire with a staple, creating a short or open circuit.
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Strip 7/16″ of insulation from opposite end of bell wire. Connect bell wire to the Quick-Connect™ terminals located on garage door opener as follows: white to white and white/red to red. Figure 5.
NOTE: The door control button may stick if the door control is not mounted on a smooth surface. If a click is not heard when pressing the door control button, loosen the two mounting screws or relocate the door control to a smoother surface. After installation, an orange indicator light behind the door control buttons will indicate proper connection. If not lit, the Lock and Light features will not function (reverse wires to correct).
FOR WALL BOARD (DRYWALL) MOUNT
Remove the left and right door control buttons by gently twisting at the top
with a small flat blade screwdriver exposing the horizontal installation
holes. Figure 2. Mark and drill wall board. Drill 7/32″ holes and use
anchors provided. Fasten with 1-1/4″ self-tapping screws. Do not overtighten.
Insert bottom tabs and snap on door control buttons. Figure 3
FOR MOUNTING ONTO A SINGLE ELECTRICAL GANG BOX
Remove the center cover or door control button by gently prying at slot in top
of the door control button with a small flat blade screwdriver exposing two
installation holes. Figure 2. For flexibility, this wall control can be
mounted either left or right of center directly over gang box. Use 6-32X1″
machine screws. Install bottom screw, allowing 1/8″ to protrude above wall
surface. Position bottom of door control on screw head and slide down to
secure. Adjust screw for snug fit. Install matching top machine screw. Do not
overtighten. Insert bottom tab and snap center cover or door control button.
Figure 4.
NOTE: Mounting hardware is included for each type of installation (use all four screws if desired).
USING THE DOOR CONTROL
Press the door control button to open or close the door. Press again to reverse the door during the closing cycle or to slop the door while it’s opening.
Light feature: Press the Light button to tum the opener light on or off,
Figure 6. It will not control the opener lights when the door is in motion. If
you turn it on and then activate the opener, the light will remain on for
4-1/2 minutes. Press again to tum it off sooner. On units that have the
adjustabile light ght featur feature the 4-1/2 minute interval can be changed
to 1-1/2, 2-1/2, or 3-1/2 minutes as follows: Press and hold the Lock button
until the light blinks (about 10 seconds). A single blink indicates that the
timer is reset to 1-1/2 minutes. Repeat the procedure and the light will blink
twice, resetting the timer to 2-1/2 minutes. Repeat again for a 3-1/2 minute
interval, etc., up to a maximum of four blinks and 4-1/2 minutes.
Lock feature: Designed to prevent operation of the door from hand-held
remote controls. However, the door will open and close from the Door Control,
the Outside Keylock and the Keyless Entry Accessories.
To activale, press and hold the Lock button for 2 seconds. Figure 6. The
door control button light will flash as long as the Lock feature is on
To turn off, press and hold the Lock button again for 2 seconds. The door control button light will stop flashing. The Lock feature will also tum off whenever the “Smart” (leam) button on the motor unit panel is activated.
NOTE: The lock and light features will work properly on Security garage door openers manufactured after 1997.
For further product information refer to your owner’s manual or go to www.liftmaster.com
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