Chamberlain HD920EV Owner's Manual page 31

Adjustments
STEP 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. Press and hold the Adjustment Button until the UP Button begins to flash and/or a beep is
heard.
2. 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.
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.
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.
5. 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.
6. Press and release the UP Button. When the door travels to the programmed UP position, the
DOWN Button will begin to flash.
7. Press and release the DOWN Button. The door will travel to the programmed DOWN position.
Programming is complete.
* 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 28). 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.
1 2
4
6
30
PROGRAMMING BUTTONS
UP Button
Adjustment Button
DOWN Button
3
5
7