Chamberlain 85870 - User Manual

Wi-Fi
®
Garage Door Openers
Chain Drive Model - 85870
FOR RESIDENTIAL USE ONLY
•
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.
Register your garage door opener to receive updates and offers from LiftMaster.
SM
1.
Take a photo of the camera icon
including the points ( ).
2.
Send it in by texting the photo to
71403 (US) or visit
www.liftmaster.photo (Global).
LiftMaster
300 Windsor Drive
Oak Brook, IL 60523

Summary

Product Preparation and Setup

Serial Number and Safety Information

Record serial number and review safety symbols and unattended operation rules.

Smartphone Connectivity Requirements

Details needed for smartphone control and testing Wi-Fi signal strength.

Installation Procedures

Header Bracket Location and Mounting

Guides on determining header bracket location and secure wall or ceiling mounting.

Rail and Opener Mounting

Steps for attaching the rail, positioning the opener, and hanging it securely.

Door Control and Protector System Installation

Installing the Wall Control Panel

Steps for mounting the door control panel and wiring it to the opener.

Safety Reversing Sensor Installation

Guides for installing and wiring the safety reversing sensors for safe operation.

Power, Adjustments, and Operation

Power Connection Methods

Connects the opener to a power source via typical or permanent wiring.

Programming Travel Limits and Force

Sets the door's open/close limits and configures the opener's force sensing.

Using Opener Features and Controls

Explains features like myQ®, controls, smartphone use, and manual operation.

Maintenance and Troubleshooting

Safety Testing and Routine Maintenance

Procedures for testing safety features, routine maintenance, and battery replacement.

Diagnostic Code Chart

Lists diagnostic codes, symptoms, and solutions for opener issues.

Warranty and Support

LiftMaster Limited Warranty

Details the warranty period for parts, motor, and accessories.

Chamberlain 85870 Specifications