Chamberlain LiftMaster 398LM - User Manual

For use with LiftMaster 1300 & 3000 Series
Garage Door Openers.
Installation
Locate control console within sight of door, at a
minimum height of 5' (1.5 m) where small
children cannot reach, away from moving parts of door and
door hardware. If installing into drywall, drill 5/32" holes and
use the anchors provided. For pre-wired installations (as in
new home construction), it may be mounted to a single gang
box (Figure 1).
NOTE: The functional temperature range of the control
console is between -4° F (-20° C) and 122° F (50° C). Scroll
speed of display is slower at lower temperatures although
the control console remains fully functional.
CAUTION: Continuous exposure of the control console to
temperatures below -22° F (-30° C) may damage the LCD
screen.
SPECIAL NOTE: Only one 398LM can be connected to
each garage door opener. If additional wall controls are
desired to operate the same garage door opener, it is
recommended to use model 378LM wireless wall control
as the secondary control console.
1. Disconnect power to opener.
2. Strip 7/16" (11 mm) of insulation from one end of bell wire
and connect to the two screw terminals on back of control
console by color: white wire to the W (2) and white/red
wire to the R (1) (Figure 2).
3. Remove push bar cover by gently prying at the
lower/middle portion of the cover with a small flat-head
screwdriver. Fasten with 6AB x 1-1/4" self-tapping screws
(drywall installation) or 6-32 x 1" machine screws
(into gang box) as follows:
• Install bottom screw, allowing 1/8" (3 mm) to protrude
above wall surface.
• Position bottom of control console on screw head and
slide down to secure. Adjust screw for snug fit.
• Drill and install top screw with care to avoid cracking
plastic housing. Do NOT overtighten.
• Replace cover by inserting top tabs first and then snap
cover in place.
4. (For standard installations ONLY) Run bell wire up wall
and across ceiling to motor unit. Use insulated staples to
secure wire in several places. Do NOT pierce wire with a
staple, creating a short or open circuit.
5. Strip 7/16" (11 mm) of insulation from end of bell wire.
Connect bell wire to the quick-connect terminals on the
motor unit: white to white and white/red to red (Figure 2).
6. Reconnect power.
NOTE: If you have any trouble with the operation of the
buttons, loosen the top mounting screw.
L
O
C
K
L
I
G
H
T
Strip wire 7/16"
7/16" (11 mm)
Red GreyWhite
Quick-Connect
Terminals
Antenna
To release wire, push in
tab with screwdriver tip
Door Control
Connections
Push Bar
Light
Button
Lock
Button
Door
Control
Terminal
Screws
(BACK VIEW)
W
2
R
1
2-Conductor
Bell Wire
L
O
C
K
L
O
C
K
To prevent possible SERIOUS INJURY OR DEATH from
electrocution:
• Be sure power is NOT connected BEFORE installing door
control.
• Connect ONLY to 24 VOLT low voltage wires.
To prevent possible SERIOUS INJURY OR DEATH from a closing
garage door:
• Install door control within sight of garage door, out of reach of
children at a minimum height of 5' (1.5 m), and away from ALL
moving parts of door.
• NEVER permit children to operate or play with door control
push buttons or remote control transmitters.
• Activate door ONLY when it can be seen clearly, is properly
adjusted and there are no obstructions to door travel.
• ALWAYS keep garage door in sight until completely closed.
NEVER permit anyone to cross path of closing garage door.
WARNING
CAUTION
WARNING
WARNING
Figure 2
Models 398LM & 398LMC
LCD Motion Detecting Door Control Console
OWNER’S INSTRUCTIONS
PRE-WIRED INSTALLATION
REMOVE & REPLACE COVER
To Replace Insert
Top Tabs First
Push Bar Cover
24 Volt Bell Wire
LOCK
L
I
G
HT
LOCK
L
I
G
HT
Figure 1
1

Summary

Installation

Safety Warnings

Crucial safety instructions to prevent electrocution and injury from closing garage door.

Installation Guide

Step-by-step instructions for mounting and wiring the control console.

Diagrams

Illustrations for cover replacement and wiring connections.

Using the Control Console

Console Features Overview

Description of the LCD console's functions and interface elements.

Light Operation

How to control and adjust the opener light, including automatic features.

Lock Feature

Instructions for activating and deactivating the lock mode.

Motion Sensing

Details on the automatic light feature and disabling motion sensing.

Programming Remotes

Using the console to learn remote controls to the opener.

Display Settings

Adjusting hour, minute, language, and display contrast.

Remote Light Control

Programming a remote to operate the opener lights.

Remote and Keyless Entry Management

Adding or Reprogramming Remotes

Procedure to add or reprogram additional remote controls using the console.

Adding or Changing Keyless Entry PIN

Steps to add, reprogram, or change a keyless entry PIN.

Erasing All Codes

How to erase all previously learned remote and keyless entry codes.

Control Console Messages

Safety Sensor Messages

Troubleshooting messages related to safety sensor alignment, blockage, or miswiring.

Learn Mode Messages

Explanation of messages displayed during remote control programming.

Lock Mode Message

Message indicating the remote control lockout mode.

Language and Motion Sensing Messages

Messages related to language selection and motion sensing status.

How to Order Repair Parts

Chamberlain LiftMaster 398LM Specifications

General

Brand	Chamberlain
Model	LiftMaster 398LM
Category	Control Panel
Language	English