Operation; Operation Safety Instructions; Using Your Garage Door Opener - Chamberlain 3275 Owner's Manual

OPERATION

IMPORTANT INSTALLATION INSTRUCTIONS
To reduce the risk of SEVERE INJURY or DEATH:
1. READ AND FOLLOW ALL WARNINGS
AND INSTRUCTIONS.
2. ALWAYS keep remote controls out of reach of
children. NEVER permit children to operate or play
with garage door control push buttons or remote
controls.
3. ONLY activate garage door when it can be seen
clearly, it is properly adjusted, and there are no
obstructions to door travel.
4. ALWAYS keep garage door in sight until completely
closed. NO ONE SHOULD CROSS THE PATH OF THE
MOVING DOOR.
5. NO ONE SHOULD GO UNDER A STOPPED,
PARTIALLY OPEN DOOR.
6. If possible, use emergency release handle to
disengage trolley ONLY when garage door is
CLOSED. Weak or broken springs or unbalanced door
could result in an open door falling rapidly and/or
unexpectedly, causing SEVERE INJURY or DEATH.
7. NEVER use emergency release handle unless garage
doorway is clear of persons and obstructions.
8. NEVER use handle to pull garage door open or closed.
If rope knot becomes untied, you could fall.

Using Your Garage Door Opener

Your Security✚ ® opener and hand-held remote control
have been factory-set to a matching code which changes
with each use, randomly accessing over 100 billion
new codes. Your opener will operate with up to eight
Security✚ ® remote controls and one Security✚
Entry System. If you purchase a new remote, or if you
wish to deactivate any remote, follow the instructions in
the Programming section.
Activate your opener with any of the following:
• The hand-held Remote Control: Hold the large push
button down until the door starts to move.
• The wall-mounted Door Control: Hold the push button
or bar down until the door starts to move.
• The Keyless Entry (See Accessories): If provided with
your garage door opener, it must be programmed
before use. See Programming.
When the opener is activated (with the safety reversing
sensor correctly installed and aligned):
1. If open, the door will close. If closed, it will open.
2. If closing, the door will reverse.
3. If opening, the door will stop.
4. If the door has been stopped in a partially open
position, it will close.
5. If obstructed while closing, the door will reverse. If the
WARNING WARNING
9. If one control (force or travel limits) is adjusted, the
other control may also need adjustment.
10. After ANY adjustments are made, the safety reversal
system MUST be tested.
11. Safety reversal system MUST be tested every month.
Garage door MUST reverse on contact with 1-1/2"
(3.8 cm) high object (or a 2x4 laid fl at) on the fl oor.
Failure to adjust the garage door opener properly
may cause SEVERE INJURY or DEATH.
12. ALWAYS KEEP GARAGE DOOR PROPERLY
BALANCED (see page 3). An improperly balanced
door may NOT reverse when required and could
result in SEVERE INJURY or DEATH.
13. ALL repairs to cables, spring assemblies and
other hardware, ALL of which are under EXTREME
tension, MUST be made by a trained door systems
technician.
14. ALWAYS disconnect electric power to garage door
opener BEFORE making ANY repairs or removing
covers.
SAVE THESE
15.
INSTRUCTIONS.
obstruction interrupts the sensor beam, the opener
lights will blink for fi ve seconds.
6. If obstructed while opening, the door will stop.
7. If fully open, the door will not close when the beam is
broken. The sensor has no effect in the opening cycle.
® Keyless
If the sensor is not installed, or is misaligned, the door
will not close from a hand-held remote. However, you can
close the door with the Door Control, the Outside Keylock,
or Keyless Entry, if you activate them until down travel is
complete. If you release them too soon, the door
will reverse.
The opener lights will turn on under the following
conditions: when the opener is initially plugged in; when
power is restored after interruption; when the opener is
activated.
They will turn off automatically after 4-1/2 minutes or
provide constant light when the Light feature on the
Multi-Function Door Control is activated. Bulb size is A19.
Bulb power is 100 watts maximum.
Security ✚
someone walks through the open garage door. With a
Multi-Function Door Control, this feature may be turned off
as follows: With the opener lights off, press and hold the
light button for 10 seconds, until the light goes on, then off
again. To restore this feature, start with the opener lights
on, then press and hold the light button for 10 seconds
until the light goes off, then on again.
26
®
light feature: Lights will also turn on when