Adjustments; Program The Travel Limits; Automatic Force Setup; Programming Buttons - LiftMaster LJ8950W Manuel

Adjustments

1
Program the Travel
Travel limits regulate the points at which the door will stop when moving up or down.
Note: While programming, the UP and DOWN buttons can be used to move the door as
needed. During the Automatic Force Setup, the door will automatically open and close.
1. Press and hold the Adjustment Button until the UP Button begins to flash and/
or a beep is heard. The Safety Reversing Sensors will be disconnected during the
Program the Travel process.
2. Press and hold the UP Button until the door is in the desired UP position.
3. Once the door is in the desired UP position press and release the Adjustment
Button. The door operator will beep and the DOWN button will flash.
4. Press and hold the DOWN Button until the door is in the desired DOWN position.
5. Once the door is in the desired DOWN position press and release the Adjustment
Button. The door operator will beep and the UP button will flash. Program the
Travel is now complete. If the door operator beeps one long beep and the audible
alert for the automatic force setup does not begin, the programming has timed out
and travel limits have not been set. Please go back to Step 1 and Program the
Limits.
2

Automatic Force Setup

1. Once both the up and down positions have been manually set, the Safety Reversing Sensors will reconnect and become operational.
Then, the door operator will enter a force-sensing operation by automatically moving the door open and close. The door operator
will sound an audible alert before automatically opening and closing the door. The door operator will beep three times, confirming
that the Automatic Force Setup completed successfully. Adjustment is complete.
2. If you hear one long beep after the door attempts to move, then the Automatic Force Set Up has not completed successfully. Please
start over at step 1 of Program the Travel.
If you are unable to program the travel:
• Ensure the cable tension monitor is correctly installed (see page 10).
• Check to see if the safety reversing sensors are misaligned or obstructed (refer to page 17). 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. If you
are unable to operate the door up and down, repeat the steps above.
1
4

PROGRAMMING BUTTONS

2
20
Without a properly installed safety
reversal system, persons (particularly
small children) could be SERIOUSLY
INJURED or KILLED by a closing door.
• Incorrect adjustment of 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" high (3.8 cm)
object (or 2x4 laid flat) on floor.
To prevent damage to vehicles, be
sure fully open door provides adequate
clearance.
UP Button
Adjustment
Button
DOWN Button
3
5