Operation Of Your Opener - Chamberlain Lift-Master Professional 1270 Owner's Manual

Activate the opener with any of the following
devices:
1. The Remote Control Transmitter. Hold push
button down until the door starts to move.
2. The Door Control. Hold push bar down until the
door starts to move.
3. The Outside Keylock or Keyless Entry.
(See Accessories)
When the Opener is Activated:
1. If open, the door will close. If closed, the door will
open.
2. If closing, the door will reverse.
3. If opening, the door will stop (allowing space for
entry and exit of pets and for fresh air).
4. If the door has been stopped in a partially open
position, it will close.
5. If obstructed while closing, the door will reverse.
6. If obstructed while opening, the door will stop.
7. The garage door will reverse in the closing cycle
when the invisible beam is broken. If fully open, the
door will not close when the beam is broken. The
sensor has no effect in the opening cycle.
If the sensor is not installed, or is not aligned correctly,
the door won't close from any remote control
transmitter. You can close the door with the Door
Control, the Outside Keylock, or Keyless Entry,
however, if you press and hold the push bar until down
travel is complete. If you release the push bar too
soon, the door will reverse.
The opener lights will blink for 5 seconds when the
safety reversing sensor causes the door to reverse.
Opener Lights will turn on under the following
conditions: When the opener is initially plugged in;
when the power is interrupted; when the opener is
activated. They will turn off automatically after 4-1/2
minutes or provide constant light when the Light
feature is activated. Bulb size is 75 watts maximum.
Lighted Push Bar
Press to open or close the door.
Press again to reverse the door during the closing
cycle or to stop the door while it's opening.
Light Feature
Press the Light button. If the opener light is off, it will
turn on .
If the opener light is on, (even in the 4-1/2 minute
automatic cycle) it will turn off.
But if you use the Light button to turn the light(s) on
and then activate the opener, the light(s) will turn off
after 4-1/2 minutes.
The Light button will not control the opener lights
when the door is in motion.

Operation of Your Opener

Operation of the Multi-Function Door Control Panel
Weak or broken springs could allow an open
door to fall (either rapidly or unexpectedly),
resulting in serious injury, death or property
damage. If possible, use the manual release
rope and handle only when the door is fully
closed.
Release Arm
Trolley
Manual
Release Handle
(Pull Down)
Manual disconnect
position
The lockout feature
prevents the trolley from
reconnecting automatically.
Pull the manual release
handle down and back
(toward the opener). The
door can then be raised
and lowered manually as
often as necessary. To
disengage the lockout
feature, pull the manual
release handle straight
down. The trolley will
reconnect on the next UP
or DOWN operation.
Lock Feature
The Lock feature is designed to prevent operation of
the door from remote controls. However, the door will
open and close from the Door Control push bar, the
Outside Keylock and the Keyless Entry Accessories.
To Activate:
Press and hold the Lock button for 2 seconds. The
push bar light will flash as long as the Lock feature
is on.
To Turn Off:
Press and hold the Lock button for 2 seconds
again.The push bar light will stop flashing. Normal
operation will resume. The Lock feature will also turn
off whenever the "Smart" button on the opener side
panel is activated.
28
WARNING
To open the door
manually:
The door should be fully
Trolley
closed if possible. Pull
down on the manual
release handle and lift the
door manually. To
reconnect the door to the
opener, press the Door
Control push bar.
Trolley
Manual
Release Handle
(Pull Down & Back
Towards Opener)
Lockout position
Trolley
Release Arm