Test The Safety Reversal System; Test The Protector System - Chamberlain RJO20 Manual

Adjustment
(continued)
3

Test the Safety Reversal System

TEST
1. With the door fully open, place a 1-1/2" (3.8 cm) board (or a 2x4 laid fl at)
on the fl oor, centered under the garage door.
2. Press the remote control or wall-mounted door control to close the door.
The door should stop and reverse when it makes contact with the board.
The door returns to the previous open position. Opener beeps and lights
fl ash 5 times.
3. If the door reverses, remove the board. The test is complete.
If the door stops but does not reverse:
1. Review the installation instructions provided to ensure all steps were
followed.
2. 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.
3. Repeat the Safety Reversal Test.
4. When the door reverses on the 1-1/2 inch (3.8 cm) board (or 2x4 laid fl at),
remove the obstruction and run the garage door opener through 3 or 4
complete travel cycles to test adjustment.
If the test continues to fail, call a trained door systems technicians.
IMPORTANT SAFETY CHECK:
Test the safety reversal 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 fl oor.
• Any repair to or adjustment of the opener.
4

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 fl ash.
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).
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.
Safety Reversing Sensor
®
Safety Reversing Sensor
24
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
fl at) on the fl oor.
1-1/2" (3.8 cm) board
(or a 2x4 laid flat)
Without a properly installed
safety reversing sensor, persons
(particularly small children) could
be SERIOUSLY INJURED or
KILLED by a closing garage door.