Chamberlain 1145- 1/3HP User Manual

Owner's Manual
Garage Door Opener
(1100 Series -- Canada)
FOR RESIDENTIAL USE ONLY
Chamberlain Manufacturing Canada, Inc. Unit 11,
230 Bayview Drive Barrie, Ontario L4N 5E9
CAUTION! PLEASE READ THIS MANUAL CAREFULLY
The MODEL NUMBER label is located on the front panel of your opener
FASTEN THIS MANUAL NEAR THE GARAGE DOOR AFTER INSTALLATION.
PERIODIC CHECKS OF THE OPENER ARE REQUIRED TO INSURE SATISFACTORY OPERATION.
CONTENTS PAGE
Safety Rules............................................................. 2
Carton Inventory....................................................... 3
Features of Your Opener........................................... 3
Specifications ........................................................... 3
Accessories.............................................................. 4
Completed Installation Illustration ............................. 5
Installation Information ............................................. 5
Operation of Your Opener......................................... 6
Care and Maintenance of Your Opener ..................... 7
Assembly.................................................................. 8
Installation................................................................ 10
CONTENTS PAGE
Limit Adjustment.......................................................20
Force Adjustment......................................................21
Safety Reverse Test..................................................22
The Protector System.............................................22
Setting/Changing Code .............................................23
Having a Problem? ...................................................24
Repair Parts, Rail Assembly......................................26
Repair Parts, Installation...........................................26
Repair Parts, Opener Assembly ................................27
How To Order Repair Parts.......................................28
Warranty...................................................................28

Chamberlain 1145- 1/3HP Specifications

General

Brand	Chamberlain
Model	1145- 1/3HP
Category	Garage Door Opener
Language	English

Summary

Important Safety Rules

Door Balance and Spring Safety

Ensures door is balanced and addresses spring tension for safe operation.

Safety Reverse System Testing

Crucial test for ensuring the door reverses on contact with obstructions.

Personal Safety During Installation

Guidelines on clothing, ropes, and locks to prevent injury during setup.

Safe Opener Operation

Instructions for safe use, including visibility, children, and obstructions.

Features of Your Opener

Safety System

Sectional Door Installation

One-Piece Door Installation

Operation of Your Opener

How to Activate the Opener

Explains methods to start the opener using remote, button, or key.

How to Operate the Door Manually

How the Door Moves When the Opener is Activated

Describes door movement during opening, closing, and obstruction scenarios.

Care of the Opener

Door Balance and Opener Limitations

Limit and Force Adjustments

Notes the importance of setting limits and forces correctly for proper operation.

Safety Reverse System Testing

Reiterates the critical nature of the safety reverse system test for safe operation.

Installation Step 1 Position and Install Header Bracket

Installation Step 3 Position the Opener

Positioning Opener for Sectional/1-Piece Doors with Track

Positioning Opener for 1-Piece Doors Without Track

Installation Step 4 Hang the Opener

Angled or Crossed Hanging Bracket Installation

Ceiling Mounted Bracket Installation

Installation Step 5 Install Lighted Door Control Button

Install Multi-Function Door Control Panel

Operation of Multi-Function Control Panel

Installation Step 7 Connect Electric Power

Permanent Wiring Connection Procedure

Installation Step 8 Fasten Door Bracket and Plate

Sectional Door Bracket Installation

One-Piece Door Bracket Installation

Installation Step 9 Connect Door Arm to Trolley

Sectional Door Arm Assembly (Figures A, B)

Sectional Door Arm Adjustment (Figure C)

All One-Piece Doors

Assemble Door Arm

Adjustment Procedures for One-Piece Doors

Covers open and closed door limit adjustments for one-piece doors.

Adjustment Step 1 Adjust UP and DOWN Limits

Adjusting UP Limit for Incomplete Opening

How to increase UP travel if the door doesn't open fully.

Adjusting DOWN Limit for Incomplete Closing

How to increase DOWN travel for incomplete closing.

Adjusting DOWN Limit for One-Piece Door Closing

Specific adjustment for one-piece doors not closing fully.

Adjusting DOWN Limit for Reversal in Closed Position

How to decrease DOWN travel if the door reverses when closed.

Adjustment Step 2 Adjust Force

Test and Adjust DOWN (Close) Force

Procedure to test and adjust closing force for proper reversal.

Adjust UP (Open) Force for Incomplete Opening

How to increase UP force if the door doesn't open sufficiently.

Adjust DOWN (Close) Force for Reversal During Closing

Adjustment Step 3 Test Safety Reverse System

Safety Reverse System Test Procedure

How to test the safety reverse system with a one-inch floor obstruction.

When to Repeat Safety Reverse Test

Installation of Optional Protector System

Radio Controls

Match/Change Code in Remote Control(s)

Match/Change Code in the Receiver

Having a Problem?

Opener Doesn't Operate

Troubleshooting steps for when the opener is unresponsive to controls.

Opener Operates from Remote, Not Button

Remote Control Transmitter Has Short Range

Garage Door Opens and Closes By Itself

Having a Problem? (continued)

Door Reverses for No Apparent Reason

Diagnosing and resolving unexpected door reversal issues.

Opener Motor Hums Briefly, Then Won't Work