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STEP 2 Test the Safety Reversal System
Withouta properly installed safetyreversal system,persons (particularly small children) could be
SERIOUSLY INJURED or KILLED bya closing garage door.
l
Safety reversal system MUSTbe tested every month.
l
After ANY adjustments are made,the safetyreversal system MUSTbe tested. Door MUST reverse
on contactwith 1-1/2" (3.8 cm) high object (or 2x4 laid flat) on the floor.
1. With the door fully open, place a 1-1/2 inch (3.8 cm) board (or a 2x4 laid flat) on the floor,
centered under the garage door.
2. Operate the door in the down direction. The door MUST reverse on striking the obstruction.
If the door stops and does notreverse on the obstruction, the down travel needs to be increased (refer to
AdjustmentStep 1).Repeat the test.When the door reverses on the 1-1/2" (3.8 cm) board (or 2x4 laid
flat), remove the obstruction and run the opener through 3 or 4 complete travel cyclesto test adjustment.
If the garage door opener continues to fail the safety reversal test,call a trained door systems technician.
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STEP 3 Test the Protector System
®
Withouta properly installed safetyreversing sensor, persons (particularly small children) could be
SERIOUSLY INJURED or KILLED bya closing garage door.
1. Open the door.Place the garage door opener carton in the path of the door.
2. Press the remote control push button to close the door. The door will notmove more than an inch
(2.5 cm), and the garage door opener lightswill flash 10 times.
The garage door opener will not close from a remote control ifthe LED in either safetyreversing sensor
is off (alerting you to the fact that the sensor ismisaligned or obstructed).If the garage door opener
closes the door when the safety reversing sensor is obstructed (and the sensorsare no more than 6
inches [15 cm]above the floor), call for a trained door systems technician.
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