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Chamberlain 248739M User Manual

Chamberlain 248739M
40 pages
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The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 60126-1196
www.chamberlain.com
GARAGE DOOR OPENER
Models WD822KD • WD832KD • 248739 1/2 HP
For Residential Use Only
Owner’s Manual
Please read this manual and the enclosed safety materials carefully!
Fasten the manual near the garage door after installation.
The door WILL NOT CLOSE unless The Protector System
®
is connected and properly aligned.
Periodic checks of the opener are required to ensure safe operation.
The model number label is located on the left side panel of your opener.
®
®
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Chamberlain 248739M Specifications

General IconGeneral
Horsepower1/2 HP
Voltage120 V
Drive SystemChain Drive
SecurityRolling Code
Battery BackupNo
Drive TypeChain Drive

Summary

Introduction and Safety

Safety Symbol and Signal Word Review

Explains the meaning of safety symbols and signal words used in the manual.

Preparation and Planning

Preparing Your Garage Door

Steps to prepare the garage door for opener installation, checking balance and locks.

Tools Needed for Installation

Lists the required tools for assembling and installing the garage door opener.

Planning Your Installation

Guidance on assessing garage space and door type for opener installation.

Carton and Hardware Inventory

Lists all parts included in the carton and necessary hardware for assembly.

Assembly

ASSEMBLY STEP 1: Assemble the Rail & Install the Trolley

Guides on assembling the garage door opener rail and installing the trolley.

ASSEMBLY STEP 2: Fasten the Rail to the Motor Unit

Instructions for attaching the rail assembly to the motor unit using a bracket.

ASSEMBLY STEP 3: Install the Idler Pulley

Details on how to install the idler pulley into the rail assembly.

ASSEMBLY STEP 4: Install the Belt and Attach the Belt Cap Retainer

Instructions for installing the drive belt and securing the belt cap retainer.

ASSEMBLY STEP 5: Set the Tension

Steps to set the belt tension using the nut ring and trolley.

Installation

INSTALLATION STEP 1: Determine the Header Bracket Location

Guides on finding the correct position for the header bracket based on door type.

INSTALLATION STEP 2: Install the Header Bracket

Instructions for securely fastening the header bracket to the wall or ceiling.

INSTALLATION STEP 3: Attach the Rail to the Header Bracket

Steps for connecting the assembled rail to the installed header bracket.

INSTALLATION STEP 4: Position the Opener

Guidance on placing the motor unit and rail assembly correctly for installation.

INSTALLATION STEP 5: Hang the Opener

Instructions for securely mounting the opener unit to the ceiling or brackets.

INSTALLATION STEP 6: Install the Door Control

Steps for mounting the wall-mounted door control and wiring it.

INSTALLATION STEP 10: Install The Protector System®

Details on installing and aligning the safety reversing sensors for safe operation.

INSTALLATION STEP 11: Fasten the Door Bracket

Instructions for attaching the door bracket to the garage door.

INSTALLATION STEP 12: Connect Door Arm to Trolley

Guides on connecting the door arm sections and attaching them to the trolley.

Adjustments

ADJUSTMENT STEP 1: Adjust the UP and DOWN Travel Limits

How to set the door's stopping points when opening or closing.

ADJUSTMENT STEP 2: Adjust the Force

Procedures for setting the opening and closing force for the opener.

ADJUSTMENT STEP 3: Test the Safety Reversal System

Ensures the opener reverses upon contact with an obstruction.

ADJUSTMENT STEP 4: Test The Protector System®

Verifies the functionality of the safety reversing sensors.

Operation and Maintenance

IMPORTANT SAFETY INSTRUCTIONS

Critical safety guidelines for operating the garage door opener.

Using Your Garage Door Opener

How to operate the opener using remotes, door controls, and keypads.

Using the Wall-Mounted Door Control

Details on the functions of the multi-function door control panel.

Care of Your Opener

Tips for maintaining the opener and a schedule for checks.

Having a Problem?

Common issues and solutions for garage door opener operation.

Diagnostic Chart

Explains LED flash codes for troubleshooting opener issues.

Programming

To Add or Reprogram a Hand-Held Remote Control

Instructions for pairing remotes with the garage door opener.

To Erase All Codes From Motor Unit Memory

How to reset all programmed remotes and keyless entries.

To Add, Reprogram or Change a Keyless Entry PIN

Steps for setting up or modifying the PIN for keyless entry access.

Parts, Accessories, and Service

Rail Assembly Parts

Lists and illustrates parts for the garage door opener rail assembly.

Installation Parts

Lists and illustrates various parts used during the installation process.

Motor Unit Assembly Parts

Identifies and illustrates the components of the opener's motor unit.

Accessories

Details available accessories like extra remotes, keyless entry, and lighting controls.

Service and Warranty Information

Contact details for service and the terms of the limited warranty.

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