GDO-8 Instruction Manual
10
11. Setting the Travel Limits
Initial Preparation:
a. With the door at the half way position and the opener
engaged, switch power on to the opener. The red MINUS
(-) LIMIT LED will be flashing.
b. Press and hold the MINUS (-) button - the door should start
closing.
NOTE:
If the door opens, release the MINUS (-) button and
press the OPERATE button once to change the motor’s
direction.
Set the Limit Positions:
The Limit Positions can vary due to site conditions, such as uneven ground. When setting the Close limits, ensure the position
is when the door makes first contact with the ground. Alternatively for the Open limits the position should be at the height of
the garage opening.
WARNING! In setting the close limit position, do
not force the door into the floor with excessive
force, as this can interfere with the ease of
operation of the manual release mechanism.
a. Press and hold MINUS (-) button until the door reaches your
desired close limit position. The rubber strip at the bottom
of the door should form a good seal with the ground.
b. Release the MINUS (-) button when the door is near the
desired closed position. Single presses of the MINUS (-)
button will inch the door closer to the ground.
c. If the door overshoots press the PLUS (+) button to move
the door in the open direction.
d. When the door is at the desired close position, press the
SET button, the PLUS (+) LIMIT LED will now flash.
e. Press and hold the PLUS (+) button until the door reaches
your desired open limit position. Single presses of the PLUS
(+) button will inch the door open.
f. If the door overshoots press the MINUS (-) button to move
the door in the close direction.
g. When the door is at the desired open position, press the
SET button.
WARNING! The door will automatically close,
open and close again after the next step. Ensure
that nothing is in the door’s path.
h. The door will now automatically close and open to calculate
the safety obstruction settings.
Resetting the Door Limit Positions
Limit positions can be deleted by:
a. Press and hold MINUS (-) button for six (6) seconds until the
MINUS (-) LIMIT LED flashes quickly.
b. Release the MINUS (-) button.
NOTE: If no action is taken within 30 seconds, the opener will
return to normal operating mode and restore the original settings.
c. Follow steps a - f in Set the Limits Poisitions to set new limit
positions.
Reset all Factory Defaults
a. Turn power to the opener off.
b. Press and hold the SET Button.
c. Turn power on while holding the SET button.
Continue to hold until all LED’s are off.
d. This will NOT erase transmitter codes stored in
memory.
