Adjustment; Program The Travel Limits - Chamberlain RJO20C Manual

Adjustment

1

Program the Travel Limits

Travel limits regulate the points at which the door will stop when moving
up or down.
Adjust the position of the door by using the black and yellow buttons. Black
moves the door UP (open) and yellow moves the door DOWN (close).
NOTE: The yellow command LED and the red learn LED will blink quickly for
up to 5 minutes as the control panel recharges. When the control panel is
operational, the yellow command LED will glow steadily.
SETTING THE UP POSITION:
1. Starting with door down, press
and hold the black button until
the LED starts flashing slowly,
then release.
3. Push the door control or
programmed remote control.
This sets the UP (open) limit
and begins closing the door.
or
SETTING THE DOWN POSITION:
5. Push and hold the yellow
button until the door reaches
the desired DOWN (closed)
position.
or
2. Push and hold the black button
until the door reaches the
desired UP (open) position.
LED
NOTE: Make sure the door opens
high enough for your vehicle.
4. Quickly press and release
either the black or yellow button
to stop the door.
6. Once the door is closed, if
there appears to be too much
pressure on the door, you
may toggle the door back and
forth using
the black and
yellow buttons
to reach the
desired closed
position.
IMPORTANT: As you perform this
task, watch the door for binding,
sticking, or swaying. Contact a door
systems technician to address these
issues if they occur.
22
Without a properly installed
safety reversal system, persons
(particularly small children) could
be SERIOUSLY INJURED or
KILLED by a closing garage door.
• NEVER learn forces or limits
when door is binding or
sticking. Repair door first.
• Incorrect adjustment of garage
door travel limits will interfere
with proper operation of safety
reversal system.
• 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 flat) on floor.
To prevent damage to vehicles,
be sure fully open door provides
adequate clearance.
7. Push the door control or
programmed remote control.
This sets the DOWN (close)
limit and the door should open.
or
Proceed to Enter Force
Adjustment Mode.