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4
ADJUSTMENTS
TEST THE SAFETY REVERSAL SYSTEM
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 MUST reverse when it makes contact with the board.
If the door stops and does not reverse on the obstruction, the
travel needs to be adjusted (refer to Program the Travel).
Repeat the test. When the door reverses upon contact with the
1-1/2 inch (3.8 cm) board, remove the board and open/close the
door 3 or 4 times to test the adjustment.
If the test continues to fail, call 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.
• After ANY adjustments are made, the safety reversal system
MUST be tested. Door MUST reverse on contact with 1-1/2"
high (3.8 cm) object (or 2x4 laid fl at) on the fl oor.
TEST THE PROTECTOR SYSTEM
®
1. Open the door. Place an obstruction in the path of the door.
2. Press the remote control push button to close the door. The
door will not move more than an inch (2.5 cm), and the
garage door opener lights will fl ash 10 times.
The garage door opener will not close from a remote control if the
LED in either safety reversing sensor is off (alerting you to the fact
that the sensor is misaligned or obstructed).
If the garage door opener closes the door when the safety
reversing sensor is obstructed (and the sensors are no more than
6 inches [15 cm] above the fl oor), call for a trained door systems
technician.
Without a properly installed safety reversing sensor, persons
(particularly small children) could be SERIOUSLY INJURED or
KILLED by a closing garage door.
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