Chamberlain 3800 - Manual (Page 21)

21
OPERATION
Using Your Garage Door Opener
Your LiftMaster Security ✚ ® opener and hand-held remote
control have been factory programmed to a matching
code which changes with each use, randomly accessing
over 100 billion new codes. Your opener will operate with
several Security
✚
® remote controls up to 12 functions,
and one Security
✚
® Keyless 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 Control Console: Hold the push 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 and cable tension monitor 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
obstruction interrupts the sensor beam, the opener
lights will blink for five 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.
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 Control Console, the Outside Key
lock, or Keyless Entry, if you activate them until down
travel is complete. If you release them too soon, the door
will reverse.
Security
✚
® light feature: Lights will also turn on when
someone walks through the open garage door. With a
Motion Detecting Control Console, this feature may be
turned off as follows: Push and hold the light button for
10 seconds and the incandescent light bulbs will blink
once signifying the feature is turned OFF. To turn the
feature back ON push and hold the light button and the
incandescent light bulbs will blink once signifying the
feature is turned ON.
IMPORTANT SAFETY INSTRUCTIONS
To reduce the risk of SEVERE INJURY or DEATH:
WARNING
WARNING
WARNING
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
OPENED DOOR.
6. If possible, use emergency release handle to disengage
door ONLY when garage door is CLOSED. Weak or broken
springs or unbalanced door could result in an open door
falling rapidly and/or unexpectedly.
7. NEVER use emergency release handle unless garage
doorway is clear of persons and obstructions.
8. After ANY adjustments are made, the safety reversal
system MUST be tested.
9. 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 flat) on the floor.
10. 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.
11. 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.
12. ALWAYS disconnect electric power to garage door opener
BEFORE making any repairs or removing covers.
13.
SAVE THESE INSTRUCTIONS.