Chamberlain 3800 Test Cable Tension Monitor, Test Power Door Lock, To Open the Door Manually, NOTE:, Test the emergency release:

ADJUSTMENT STEP 5

Test Cable Tension Monitor

If your cable tension monitor has been activated the LED will blink 9 times.

ADJUSTMENT STEP 6

Test Power Door Lock

TEST

•With the door fully closed, the power door lock bolt should be protruding through the track.

•Operate the door in the open direction. The power door lock should retract before the door begins to move.

•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.

ADJUSTMENT STEP 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 and lift the door manually. To reconnect the door to the opener, pull down the emergency release handle straight down a second time. The door will reconnect on the next UP or DOWN operation.

Test the emergency release:

•Make sure the garage door is closed.

•Pull the emergency release handle. The garage door should then be able to be opened manually.

•Return the door to the closed position.

•Pull the emergency handle a second time.

•Reconnect the door to the opener.

WARNING

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.

Emergency

Release Handle

Power Door Lock

Manual Release

Lock Bolt “Locked”

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