Care Of Your Opener; Operation Of Your Opener - Chamberlain Merlin MJ3800R Installation And Operating Instructions Manual

OPERATION OF THE OPENER
Your Merlin ® Security + opener and hand-held transmitter
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 64 Merlin
Security + transmitters and one Keyless Entry System. If you
purchase a new transmitter, or if you wish to deactivate any
transmitter, follow the instructions in the Programming
section.
Activate your opener with any of the following:
• The hand-held transmitter: Hold top middle button down
until the door starts to move.
• The Keyless Entry: Must be programmed before use.
See Programming.
• Multi-Function Door Control
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 stop
and reverse. The LED indicator light will flash.
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
won't close from a hand-held transmitter or wireless wall
button. However, you can close the door with the multi-
function 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.

CARE OF YOUR OPENER

MAINTENANCE SCHEDULE
Once a Month
Manually operate door. If it is unbalanced or binding, call a
•
trained door systems technician.
• Check to be sure door opens & closes fully. Adjust limits
and/or force if necessary (see Adjustment Steps 1 and 2).
• Repeat the safety reverse test. Make any necessary
adjustments (see Adjustment Step 3).
Once a Year
• Clean the door tracks. The opener does not require
additional lubrication. Do not grease the door tracks
Using your C945 3ch Mini-Transmitter
®
IR Beam
Using your Multi-Function Door Control
IR Beam
.
23
IR Beam