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Step 27: Setting Door Close Travel Plus “Contact Obstruction Sensing” Test
With wall control up/down button, activate door to
full open position; reactivate to close position. The
door should stop on the floor with the bottom door
seal slightly compressed. If the door reverses off the
floor, turn close travel knob 1/4 turn “less”. If door is
not completely closed, turn travel knob 1/4 turn
“more”. Repeat if necessary.
IMPORTANT! Test “Contact Obstruction Sensing Feature”
After installing opener, the door must reverse when it contacts a 1 inch high object on the floor
Activate the door to the full, open
position and place a 1” (25mm) solid
test obstacle on the floor under the
garage door. Activate the door to the
closed position. The door should
reverse upon contact with the 1”
obstacle.
If door stops on the 1” obstacle, adjust
the close travel knob 1/4 turn “more”
until door reverses upon contact with
obstacle. Repeat if necessary.
When the door reverses, remove the test object and run the full cycle of open and close of the door. Door should not re-
verse when it comes to the fully closed position.
Note: If opener fails to pass this test, repeat Step 27. Also see Adjustment #2, page 22, (Contact Obstruction
Sensing Adjustment).
Step 28: Setting Door Opening Travel
Do not use adjustments to compensate for a poorly
balanced door. This will interfere with the proper opera-
tion of the travel adjustments and may damage door.
The door opener is assembled with the open travel
adjustment preset for a typical door, but all doors should be
adjusted to stop as close as possible to the door’s “natural”
fully open, resting position.
To determine the door’s “natural” fully open, resting position, disconnect door from opener using the Emergency Release
Disconnect (see page 26, HOW TO OPERATE YOUR DOOR MANUALLY) and manually raise door to its “natural” fully
open, resting position. Use this location for your open limit setting. To determine if door needs adjustment, activate the
opener to bring door to fully open position.
NOTE: If door does not open fully and opener light flashes (make sure the bulb is installed and operating) check
for an obstruction or see Adjustment #1, page 21 (Adjusting Opening Force).
To adjust for a non-standard door or to precisely set the open position: Using the wall station, operate the door and stop it
in mid-travel position; using a flathead screwdriver turn the OPEN travel adjuster for more (counter-clockwise) or less
(clockwise) travel. A 1/4 turn equals approximately 1” of trolley movement.