Chamberlain PREMIUM series User Manual

Wi-Fi
®
Garage Door Opener
Premium Series Belt Drive Model 8355W
• Please read this manual and the safety materials
carefully!
• 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.
• This garage door opener is ONLY compatible with
MyQ
®
and Security+ 2.0
®
accessories.
• DO NOT install on a one-piece door if using devices
or features providing unattended close. Unattended
devices and features are to be used ONLY with
sectional doors.
• Attach warning labels to the location indicated on
label.
FOR RESIDENTIAL USE ONLY
LiftMaster
845 Larch Avenue
Elmhurst, Illinois 60126-1196
Register your garage door opener to receive
updates and offers from LiftMaster
Send it in by texting
the photo to 71403 (US)
or visit www.liftmaster.photo (Global)
Take a photo of the camera icon
including the points ( ).
For more information:
www.devancocanada.com
or call toll free at 855-931-3334

Chamberlain PREMIUM series Specifications

General

Type	Garage Door Opener
Wi-Fi Capable	Yes
Drive	Belt Drive
Connectivity	Wi-Fi
Safety	Safety Sensors
Remote Control	Included
Security	Rolling Code Technology
Battery Backup	Yes
Smart Home Compatibility	Yes

Summary

Installation

IMPORTANT INSTALLATION INSTRUCTIONS

Key safety warnings and instructions to follow before and during the installation process.

Determine the Header Bracket Location

Install the Door Control

Install the Protector System®

Instructions for installing the safety reversing sensors to detect obstructions.

Power

Connect Power

Options and instructions for connecting the garage door opener to a power source.

Ensure the Safety Reversing Sensors are Aligned

Adjustments

Program the Travel

Procedure to set the garage door's open and close limits using the programming buttons.

Test the Safety Reversal System

Procedure to test the safety reversal system's functionality by using an obstruction.

Operation

IMPORTANT SAFETY INSTRUCTIONS

Crucial safety guidelines for operating the garage door opener and system.

Connect With Your Smartphone

To Open the Door Manually

Troubleshooting

Diagnostic Chart

Warranty

LIFTMASTER® LIMITED WARRANTY