Chamberlain LA412 User Manual

OPERATION AND MAINTENANCE

  1.   READ AND FOLLOW ALL INSTRUCTIONS.
  2.   NEVER let children operate or play with gate controls. 

Keep the remote control away from children.

  3.   ALWAYS keep people and objects away from the gate. NO 

ONE SHOULD CROSS THE PATH OF THE MOVING GATE.

  4.   Test the gate operator monthly. The gate MUST reverse on 

contact with a rigid object or stop when an object activates 
the non-contact sensors. After adjusting the force or the 
limit of travel, retest the gate operator. Failure to adjust 
and retest the gate operator properly can increase the risk 

of INJURY or DEATH.

  5.   Use the emergency release ONLY when the gate is not 

moving.

  6.   KEEP GATES PROPERLY MAINTAINED. Read the owner’s 

manual. Have a qualifi ed service person make repairs to 
gate hardware.

  7.   The entrance is for vehicles ONLY. Pedestrians MUST use 

separate entrance.

  8.   Disconnect ALL power BEFORE performing ANY 

maintenance.

 9. 

USING YOUR GATE OPERATOR

Your operator will operate with up to forty-nine Security

✚

®

 

remote controls 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 operator with any of the following:
•  The hand-held Remote Control (See Accessories): 

Hold the large push button down until the gate starts to 
move.

•  The Keyless Entry (See Accessories): If provided with 

your gate operator, it must be programmed before use. 
See Programming.

When the operator is activated (with the safety 
sensors correctly installed and aligned)
1. If open, the gate will close. If closed, it will open.
2.  If the gate has been stopped in a partially open position, 

it will close.

3.  If obstructed while closing, the gate will stop and reverse 

direction for approximately 2 seconds and then stop. The 
next command will open the gate. 

4.  If obstructed while opening, the gate will stop and 

reverse direction for approximately 2 seconds and then 
stop. The next command will close the gate. 

The operator alarm will sound under the following 
condition: If gate encounters two consecutive obstructions, 
before reaching the open or close limit, the operator will 
stop, the alarm will sound (up to 5 minutes) and the control 
board will require resetting. Reset the control board by 
pressing the “Reset Button” located on the outside of 
the control box. No commands at this time will operate 
gate. After the operator is reset, normal functions will be 
available. 

The Timer-To-Close (TTC) Feature comes from the 
factory in the OFF setting.
The “TIMER RUNNING LED” will fl ash once for every 
second of adjusted time. The gate(s) must fully open for 
the timer feature to be active and close the gate(s). Any 
radio command or pressing the single button on the control 
board prior to the TCC time expiring will close the gate. The 
TTC is reset by any signals from the loops, close edges, 
and close safety sensors (IR’s).

Party Mode: If the Timer-to-Close feature is enabled and 
you would like the gate to remain open, simply push the 
reset button (located on the outside of the control box). 
To set party mode: open the gate fully, then press the reset 
button. The next command given by remote control or 
SBC on the control board will close the gate and return the 
operator to normal operation.

Sleep Mode (Battery Conservation): The operator enters 
sleep mode 10 seconds after the last command is given. 
The diagnostic LED will blink in this mode. The safety 
sensors (photo eyes) indicator LEDs will not be on. The 
next command given will return the operator to normal 
operation.

Reset Button: The reset 
button can be used to set the 
operator into party mode and 
to reset the alarm after an 
obstruction. The diagnostic 
LED can be reset by holding 
the reset button for 1 to 2 
seconds.

 

37 

Operation and Maintenance

Reset Button