Chamberlain 1280 - 1/2 HP manual

The Chamberlain Group, Inc.

A DUCHOSSOIS ENTERPRISE

845 Larch Avenue

Elmhurst, Illinois 60126-1196

Complies with UL 325
Regulations effective
January 1, 1993	®

Garage Door Opener

OWNER'S MANUAL

Model 1280

- 1/2 HP -

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 and adjustment of the opener are required to ensure safe operation.

■The model number label is located under the light lens on the left side panel of your opener as shown.

Contents

Page Contents Assembly section - pages 6 – Installation section - pages 8 – Page Adjustment section - pages 24 – Page SECTIONAL Door or ONE-PIECEDoor with Track Installation ONE-PIECEDoor Without Track Installation Page Attach the T-RailTo the Opener Set the Belt Tension Attach the Belt Cap Retainer Determine Header Bracket Location ONE-PIECEDoor Without Track Install the Header Bracket Attach the T-railto the Header Bracket Position the Opener Hang the Opener Install the Multi-Function Door Control Panel Install the Lights and the Lenses Attach the Manual Release Rope and Handle Electrical Requirements Page Install the Safety Reversing Sensor (Receiving and Sending Eyes) Aligning the Safety Sensors Trouble Shooting Fasten Door Bracket All ONE-PIECEDoor Installation Procedure Connect Door Arm to Trolley All ONE-PIECEDoors Assemble the Door Arm: Adjustment Procedures for One-PieceDoors Open Door Adjustment: Decrease UP limit Adjust the UP and DOWN Limits Adjust the Force Test The Protector System® Test the Safety Reverse System Maintenance Schedule Activate the opener with any of the following: The Remote Control Transmitter The Door Control •The Outside Keylock or Keyless Entry. (See Accessories) If possible, use the manual release rope and handle To Add a Single Function Remote Control Model 81LM "Smart Single Function Remote Control To Change the Selected Push Button Situation Probable Cause & Solution The opener doesn't operate from either the door control or the remote control: Opener operates from remote control, but not from door control: The door operates from the door control, but not from the remote control: (continued) Rail Assembly Parts Installation Parts Opener Assembly Parts Page Garage Door Manual Release Rope & Handle Opener Terminals Operational Noise Receiver & Remote Controls LIFT-MASTERGARAGE DOOR OPENER ONE-YEARLIMITED WARRANTY LIMITED WARRANTY ON MOTOR - MODEL