User's Manual
30
Adjustments
STEP 3 Test the Safety Reversal System
Withouta properly installed safety reversal system, persons(particularlysmall children) could be
SERIOUSLY INJUREDor KILLED by a closing garage door.
• Safety reversal system MUST be tested everymonth.
• After ANY adjustments are made, the safety reversal system MUST be tested. Door MUSTreverse
on contact with 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. Press the remote control push button to close the door.The door MUSTreverse when it makes
contact with the board.
If the door stops and doesnotreverse on the obstruction, the down travel needsto be increased (refer to
AdjustmentStep 1). Repeat the test.When the door reverses upon contact with the 1-1/2 inch board,
remove the board and open/close the door 3 or 4 timesto testthe adjustment. If the garage door opener
continues to fail the safetyreversal test,call a trained door systemstechnician.
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STEP 4 Test the Protector System
®
Without a properly installed safety reversing sensor, persons (particularly small children) could be
SERIOUSLY INJURED or KILLED by a closing garage door.
1. Open the door. Place the garage door opener carton in the path ofthe 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 lights will flash 10 times.
The garage door opener will notclose from a remote control if the LEDin either safetyreversing sensor
is off(alerting you to the fact that the sensor is misaligned or obstructed). If the garage door opener
closesthe door when the safetyreversing sensor is obstructed (and the sensors are no more than 6
inches [15 cm]above the floor), call for a trained door systemstechnician.
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