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21
TEST
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. Upon successful safety reversal test proceed to Adjustment Step 4.
ADJUST
If the door stops on the obstruction, it is not traveling far enough in the down direction.
Complete Adjustment Steps 1 and 2 Program the Travel Limits and Set the Force.
Repeat the test.
When the door reverses on the 1-1/2 inch (3.8 cm) board (or 2x4 laid flat), remove the
obstruction and run the garage door opener through 3 or 4 complete travel cycles to
test adjustment.
If the garage door opener continues to fail the Safety Reverse Test, call for a trained door
systems technician.
IMPORTANT SAFETY CHECK:
Test the Safety Reverse System after:
• Each adjustment of limits, or force controls.
• Any repair to or adjustment of the garage door (including springs and hardware).
• Any repair to or buckling of the garage floor.
• Any repair to or adjustment of the opener.
Test the Safety Reversal System
Test the Protector System
®
1. Press the remote control push button to open the door.
2. Place the opener carton in the path of the door.
3. Press the remote control push button to close the door. The door will not move
more than an inch (2.5 cm), and the opener lights will flash.
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 misalignedor obstructed).
If the garage door opener closes the door when the safety reversing sensor is
obstructed, do not operate the door. Call for a trained door systems technician.
Without a properly installed safety
reversal system, persons (particularly
small children) could be SERIOUSLY
INJURED or KILLED by a closing
garage door.
• Safety reversal system MUST be
tested every month.
• If one control (force or travel limits)
is adjusted, the other control may
also need adjustment.
• 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 the floor.
Without a properly installed safety
reversing sensor, persons (particularly
small children) could be SERIOUSLY
INJURED or KILLED by a closing
garage door.
3
4
Adjustment
Safety Reversing Sensor
Safety Reversing Sensor
1-1/2" (3.8 cm) board
(or a 2x4 laid flat)
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