Test Cable Tension Monitor; Test Power Door Lock; To Open Door Manually - Chamberlain LiftMaster Elite Security+ 3800PLD Owner's Manual

Adjustment
5

Test Cable Tension Monitor

If your cable tension monitor has been
activated the LED on the garage door
opener will blink 9 times.
6

Test Power Door Lock

1. With the door fully closed, the power
door lock bolt should be protruding
through the track.
2. Operate the door in the open direction.
The power door lock should retract
before the door begins to move.
3. Operate the door in the down direction.
When the door reaches the fully closed
position, the power door lock should
automatically activate to secure the
door.
NOTE: If the power door lock does
not function, the lock can be manually
released by sliding the manual release
handle to the open position.
7
To Open the Door Manually
Disengage door lock before proceeding.
The door should be fully closed if possible.
Pull down on the emergency release handle
until a click noise is heard from the garage
door opener and lift the door manually.
To reconnect the door to the garage door
opener, pull the emergency release handle
straight down a second time until a click
noise is heard from the garage door
opener. The door will reconnect on the next
UP or DOWN operation.
Test the emergency release:
1. Make sure the garage door is closed.
2. Pull the emergency release handle. The
garage door should then be able to be
opened manually.
3. Return the door to the closed position.
4. Pull the emergency handle a second
time.
5. Reconnect the door to the garage door
opener.
LED
Power Door Lock
Emergency
Release Handle
22
To prevent possible SERIOUS INJURY
or DEATH from a falling garage door:
• 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.
• NEVER use emergency release handle
unless garage doorway is clear of
persons and obstructions.
Manual Release
Lock Bolt
"Locked"