Chamberlain 248754 User Manual
Owner’s manual
The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 60126-1196
www.chamberlain.com
GARAGE DOOR OPENER
Model 248754
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.
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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.
®
®
Table of contents
Document Outline
- OWNER'S MANUAL
- TABLE OF CONTENTS
- INTRODUCTION
- ASSEMBLY
- INSTALLATION
- Determine the Header BracketLocation
- Install the Header Bracket
- Attach the Rail to the Header Bracket
- Position the Opener
- Hang the Opener
- Install the Door Control
- Install the Battery Backup
- Install the Lights
- Attach the Emergency Release Ropeand Handle
- Electrical Requirements
- Install The Protector System®
- Fasten the Door Bracket
- Connect Door Arm to Trolley
- ADJUSTMENT
- OPERATION
- Diagnostic Chart
- PROGRAMMING
- REPAIR PARTS
- Rail Assembly Parts
- ACCESSORIES
- NOTES
- TECHNICAL SUPPORT
- WARRANTY
- SPANISH MANUAL