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I Adjustment Step 3 I
Test the Safety Reversing Sensor
• Press the relnote control push button to open the door.
• Place the opener carton in the path of the door.
• Press the relnote control push button to close the door.
The door will not move more than an inch, and the
opener light will flashJbr 5 seconds.
Professional serviee is required if the opener closes the
door when the safety reversing sensor is"obstructed.
The garage door opener will not close from a remote if
the indicator light in either sensor is off(alerting you
to the fact that the sensor is misaligned or obstructed).
The garage door can be closed by pressing and homing the
Door Control push button until down travel is completed.
Withouta properly workingsafety reversing sensor,
persons(particularlychildren)couldbeseriouslyinjured
or killedif trappedbya closinggaragedoor.Repeatthis
test oncea month.
[
Safety Reversing Sensor Safety Reversing Sensor
I Adjustment Step 4
Test the Safety Reverse System
Test
• Place a one-inch board (or a 2x4 laid fiat) on the floor,
centered under the garage door.
• Operate the door in the down direction. The door must
reverse on striking the obstruction.
Adjustment
If the door stops on the obstruction, it is not traveling far
enough in the down direction.
• Increase the DOWN limit by turning the DOWN limit
adjustment screw counterclockwise 1/4 tuna.
• Repeat the test.
On a sectional dool; make sure limit adjustments do
not force the door arm beyond a straight up and down
position. See the illustration on page 26.
• When the door reverses on the one-inch board, remove
the obstruction and run the opener tl_ough 3 or 4
complete travel cycles to test adjustment.
If the door will not reverse after repeated adjustment
attempts, call for professional garage door service.
Important Safety Check
Repeat Adjustment Steps 1 - 4 after:
• Each adjustlnent of door arm length, force controls or
limit controls.
• Any repair to or adjustment of the garage door
(including swings and hardware).
• Any repair to or buckling of the garage floor.
• Any repair to or adjustment of the opener.
I
Failureto testand adjustthesafetyreversesystemmay
resultin seriousinjuryor deathtopersonstrappedbya
closinggaragedoor.Repeatthis test oncea monthand
adjustas needed.
L
h board (or a 2x4 la_d flat)
3O
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