LiftMaster 8557 8557 Manual - Page 1

LiftMaster 8557 Manual

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ELITE Series Garage Door Opener Models • 8550 - DC Belt Drive with Battery Backup • 8557 - 3/4 hp Belt Drive FOR RESIDENTIAL USE ONLY ■ 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 garage door opener are required to ensure safe operation. ■ The model number label is located on the left side panel of your garage door opener. ■ This garage door opener is ONLY compatible with MyQ® and Security✚ 2.0™ accessories. ■ DO NOT enable the Timer-to-Close feature if you are installing the garage door opener on a one-piece door. The Timer-to-Close is to be used ONLY with sectional doors. NOTE: If you are installing the garage door opener on a one-piece door, visit www.liftmaster.com for installation instructions. Write down the following information for future reference: Serial Number: . Date of Purchase: CONTENTS Preparation 2-3 Assembly 4-5 Installation 6-13 Install the Door Control 14-16 Install the Protector System® . . 17-20 Power 21-22 Adjustments 23-25 Battery Backup 26-27 Operation 28 Features 29 Door Control 30-31 Remote Control 32-33 To Erase the Memory 33 To Open the Door Manually . . . . . 34 Maintenance 34 Troubleshooting 35-36 Accessories 37 Warranty 38 Repair Parts 39-41 * If applicable www.liftmaster.com The Chamberlain Group, Inc. 845 Larch Avenue Elmhurst, Illinois 60126-1196

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CONTENTS
Preparation. . . . . . . . . . . . . . . .2-3
Assembly
. . . . . . . . . . . . . . . . .4-5
Installation . . . . . . . . . . . . . . .6-13
Install the Door Control . . . . . . 14-16
Install the Protector System
®
. . 17-20
Power. . . . . . . . . . . . . . . . . . 21-22
Adjustments
. . . . . . . . . . . . . 23-25
Battery Backup* . . . . . . . . . . . 26-27
Operation . . . . . . . . . . . . . . . . . 28
Features . . . . . . . . . . . . . . . . . . 29
Door Control
. . . . . . . . . . . . . 30-31
Remote Control . . . . . . . . . . . 32-33
To Erase the Memory
. . . . . . . . . 33
To Open the Door Manually . . . . . 34
Maintenance . . . . . . . . . . . . . . . 34
Troubleshooting. . . . . . . . . . . 35-36
Accessories. . . . . . . . . . . . . . . . 37
Warranty. . . . . . . . . . . . . . . . . . 38
Repair Parts
. . . . . . . . . . . . . 39-41
* If applicable
ELITE Series
Garage Door Opener
The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 60126-1196
■
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 garage door opener are required to ensure safe operation.
■
The model number label is located on the left side panel of your garage door opener.
■
This garage door opener is ONLY compatible with MyQ
®
and Security
✚
2.0™
accessories.
■
DO NOT enable the Timer-to-Close feature if you are installing the garage door
opener on a one-piece door. The Timer-to-Close is to be used ONLY with
sectional doors.
NOTE:
If you are installing the garage door opener on a one-piece door, visit
www.liftmaster.com for installation instructions.
www.liftmaster.com
Serial Number:
Date of Purchase:
Models
•
8550 - DC Belt Drive
with Battery Backup
•
8557 - 3/4 hp
Belt Drive
FOR RESIDENTIAL USE ONLY
.
Write down the following information for
future reference: