Chamberlain LiftMaster LA412 Installation Manual

Chamberlain LiftMaster LA412

52 pages

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UL325

compliant

UL991

compliant

THIS PRODUCT IS TO BE INSTALLED AND

SERVICED BY A TRAINED GATE SYSTEMS

TECHNICIAN ONLY.

Visit www.liftmaster.com to locate a

professional installing dealer in your area.

This model is for use on vehicular passage

gates ONLY and not intended for use on

pedestrian passage gates.

This model is intended for use in Class I

vehicular swing gate applications.

RESIDENTIAL DC SOLAR

VEHICULAR SWING GATE OPERATOR

LA412

MODEL

INSTALLATION

MANUAL

LA4121PKGDC

Single Arm Package

LA412DC

Primary 12 VDC Actuator Arm for single

swing gate applications

LA412DCS

Secondary 12 VDC Actuator Arm for dual

swing gate applications

Table of Contents

Other manuals for Chamberlain LiftMaster LA412

Owner's Manual48 pages

Questions and Answers:

C
cynthiaperezJul 30, 2025
How to fix low battery voltage on Chamberlain LiftMaster LA412 Gate Opener?
- S
  Stacy GillespieJul 30, 2025
  If your Chamberlain Gate Opener displays a low battery voltage, the battery may not be properly charged. Disconnect all batteries and ensure AC or solar power is connected, verifying the AC power outlet. Also, check the battery fuses to ensure they are intact; replace any blown fuses with the same type and rating. It's also possible that the batteries are old or excessively depleted, requiring replacement.
S
Shelby SchultzAug 4, 2025
How to fix STOP NOT CONNECTED error on Chamberlain Gate Opener?
- K
  Kim HodgesAug 4, 2025
  Check to make sure the jumper wire is connected between the COM and STOP input on the control board. Stop is an NC (normally closed) input.
E
emilyjohnsonAug 16, 2025
Why does my Chamberlain Gate Opener have force reversal?
- B
  Bobby HuntAug 17, 2025
  If your Chamberlain Gate Opener experiences force reversal, ensure the gate's path is clear and moves freely. If no obstruction exists, the force adjustment might be too low. Increase the force setting, ensuring the gate moves without reversing but reverses upon encountering an obstruction.
J
jonesjamesAug 23, 2025
What to do if Chamberlain LiftMaster LA412 Gate Opener shows potential chip failure?
- R
  Randy ToddAug 23, 2025
  If your Chamberlain Gate Opener indicates a potential chip failure, try turning the power off and on. If the problem persists, the control board may need to be replaced.

Chamberlain LiftMaster LA412 Specifications

General

Model	LA412
Power Source	AC
Motor	24V DC
Battery Backup	Yes
Remote Control	Yes
Warranty	2 years
Voltage	120V AC
Type	Gate Opener
Max Gate Length	16 ft
Safety Features	Obstruction Sensing
Operating Temperature	-4°F to 122°F

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