The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 60126-1196
www.chamberlain.com
CONTENTS
Preparation .............................. 1-4
Assembly ................................. 5-9
Installation ............................ 10-19
Install the Door Control ............. 20-21
Install the Protector System
®
...... 22-25
Power .................................. 26-27
Adjustments .......................... 28-30
Operation.................................. 31
Using Your Garage Door Opener ...... 32
Using the Wall-Mounted
Door Control .............................. 32
To Open the Door Manual .............. 33
Care of Your Opener ..................... 33
Having a Problem? ...................... 34
Diagnostic Chart ......................... 35
Programming ......................... 36-37
The Remote Control Battery ............ 38
Accessories ............................... 39
Warranty .................................. 40
Repair Parts .......................... 41-42
1/2 hp Belt Drive
Garage Door Opener
■ 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 panel of your garage
door opener.
FOR RESIDENTIAL USE ONLY
Serial Number:
Date of Purchase:
Write down the following information
for future reference:
.
.
LW3500
®
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