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GARAGE DOOR OPENER
Models 2280 1/2 HP
2280-267 1/2 HP
2280-976 1/2 HP
For Residential Use Only
Owner's Manual
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
properly aligned.
Periodic checks of the opener are required to ensure safe operation.
The model number label is located on the front panel of your opener.
®
The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 60126-1196
www.liftmaster.com
®
is connected and
®

Summary of Contents

  • Page 1

    GARAGE DOOR OPENER Models 2280 1/2 HP 2280-267 1/2 HP 2280-976 1/2 HP For Residential Use Only Owner’s Manual ■ Please read this manual and the enclosed safety materials carefully! ■ Fasten the manual near the garage door after installation.

  • Page 2: Table Of Contents

    Safety Symbol and Signal Word Review This garage door opener has been designed and tested to offer safe service provided it is installed, operated, maintained and tested in strict accordance with the instructions and warnings contained in this manual. WARNING...

  • Page 3: Preparing Your Garage Door, Tools Needed

    To prevent damage to garage door and opener: • ALWAYS disable locks BEFORE installing and operating the opener. • ONLY operate garage door opener at 120V, 60 Hz to avoid malfunction and damage. Tools needed During assembly, installation and adjustment of the opener, instructions will call for hand tools as illustrated below.

  • Page 4: Planning

    Planning Identify the type and height of your garage door. Survey your garage area to see if any of the conditions below apply to your installation. Additional materials may be required. You may find it helpful to refer back to this page and the accompanying illustrations as you proceed with the installation of your opener.

  • Page 5: Carton Inventory

    Carton Inventory Your garage door opener is packaged in two cartons which contain the motor unit and all parts illustrated below. Accessories will depend on the model Multi-Function Door Control Panel Motor Unit with 2 Light Lenses SECURITY✚ ® Keyless Entry...

  • Page 6: Assembly, Attach The Rail To The Motor Unit, Set The Belt Tension

    ASSEMBLY STEP 1 Attach the Rail to the Motor Unit To avoid installation difficulties, do not run the garage door opener until instructed to do so. • Remove the two washered bolts mounted in top of motor unit. • Align rail and styrofoam over sprocket. Cut tape from rail, belt and styrofoam.

  • Page 7: Attach The Belt Cap Retainer, Assembly, Installation, Installation

    4. Disable all locks and remove all ropes connected to garage door BEFORE installing opener to avoid entanglement. 5. Install garage door opener 7 feet (2.13 m) or more above floor. 6. Mount emergency release handle 6 feet (1.83 m) above floor.

  • Page 8: Determine The Header Bracket Location

    INSTALLATION STEP 1 Determine the Header Bracket Location WARNING To prevent possible SERIOUS INJURY or DEATH: • Header bracket MUST be RIGIDLY fastened to CAUTION structural support on header wall or ceiling, otherwise garage door might not reverse when required. DO NOT install header bracket over drywall.

  • Page 9: Install The Header Bracket

    INSTALLATION STEP 2 Install the Header Bracket You can attach the header bracket either to the wall above the garage door, or to the ceiling. Follow the instructions which will work best for your particular requirements. Do not install the header bracket over drywall.

  • Page 10: Attach The Rail To The Header Bracket

    Header Wall Header Bracket Belt Pulley Bracket Garage Door HARDWARE SHOWN ACTUAL SIZE Clevis Pin 5/16"x2-3/4" INSTALLATION STEP 3 Attach the Rail to the Header Bracket • Position the opener on the garage floor below the header bracket. Use packing material as a protective base.

  • Page 11: Position The Opener

    INSTALLATION STEP 4 Position the Opener Follow instructions which apply to your door type as illustrated. SECTIONAL DOOR OR ONE-PIECE DOOR WITH TRACK A 2x4 laid flat is convenient for setting an ideal door-to-rail distance. • Remove foam packaging. • Raise the opener onto a stepladder. You will need help at this point if the ladder is not tall enough.

  • Page 12: Hang The Opener

    Lag Screw 5/16"-18x1-7/8" Hex Bolt 5/16"-18x7/8" Nut 5/16"-18 To avoid possible SERIOUS INJURY from a falling garage door opener, fasten it SECURELY to structural supports of the garage. Concrete anchors MUST be used if installing any brackets into masonry. Figure 1 Measure Distance Bolt 5/16"-18x7/8"...

  • Page 13: Install The Door Control

    CAUTION INSTALLATION STEP 6 Install the Door Control Locate door control within sight of door at a minimum height of 5 feet (1.5 m) where small children cannot reach, and away from moving parts of door and door hardware. The installation surface must be smooth and flat.

  • Page 14: Install The Light, Attach The Emergency Release Rope And Handle

    • Reverse the procedure to close the lens. • If the bulbs burn out prematurely due to vibration, replace with a Garage Door Opener bulb. NOTE: Use only standard light bulbs. The use of short neck or speciality light bulbs may overheat the endpanel or light socket.

  • Page 15: Electrical Requirements

    WARNING INSTALLATION STEP 9 Electrical Requirements CAUTION To avoid installation difficulties, do not run the opener at this time. To reduce the risk of electric shock, your garage door opener has a grounding type plug with a third grounding pin. This plug will only fit into a grounding type outlet.

  • Page 16: Install The Protector System, Install The Protector System

    INSTALLATION STEP 10 Install The Protector System The safety reversing sensor must be connected and aligned correctly before the garage door opener will move in the down direction. IMPORTANT INFORMATION ABOUT THE SAFETY REVERSING SENSOR When properly connected and aligned, the sensor will detect an obstacle in the path of its electronic beam.

  • Page 17

    INSTALLING THE BRACKETS Be sure power to the opener is disconnected. Install and align the brackets so the sensors will face each other across the garage door, with the beam no higher than 6" (15 cm) above the floor. They may be installed in one of three ways, as follows.

  • Page 18

    MOUNTING AND WIRING THE SAFETY SENSORS • Slide a 1/4"-20x1/2" carriage bolt head into the slot on each sensor. Use wing nuts to fasten sensors to brackets, with lenses pointing toward each other across the door. Be sure the lens is not obstructed by a bracket extension (Figure 5).

  • Page 19: Fasten The Door Bracket, Fasten The Door Bracket

    INSTALLATION STEP 11 Fasten the Door Bracket Follow instructions which apply to your door type as illustrated below or on the following page. A horizontal reinforcement brace should be long enough to be secured to two or three vertical supports. A vertical reinforcement brace should cover the height of the top panel.

  • Page 20

    ONE-PIECE DOORS Please read and comply with the warnings and reinforcement instructions on the previous page. They apply to one-piece doors also. • Center the door bracket on the top of the door, in line with the header bracket as shown. Mark either the left and right, or the top and bottom holes.

  • Page 21

    INSTALLATION STEP 12 Connect Door Arm to Trolley Follow instructions which apply to your door type as illustrated below and on the following page. SECTIONAL DOORS ONLY • Make sure garage door is fully closed. Pull the emergency release handle to disconnect the outer trolley from the inner trolley.

  • Page 22: Connect The Door Arm To The Trolley, Connect The Door Arm To The Trolley

    ALL ONE-PIECE DOORS 1. Assemble the door arm, Figure 4: • Fasten the straight and curved door arm sections together to the longest possible length (with a 2 or 3 hole overlap). • With the door closed, connect the straight door arm section to the door bracket with the 5/16"x1-1/4"...

  • Page 23: Adjustment

    ADJUSTMENT STEP 1 Adjust the UP and DOWN Travel Limits Limit adjustment settings regulate the points at which the door will stop when moving up or down. To operate the opener, press the Door Control push bar. Run the opener through a complete travel cycle. •...

  • Page 24: Adjust The Force

    ADJUSTMENT STEP 2 Adjust the Force Force adjustment controls are located on the back panel of the motor unit. Force adjustment settings regulate the amount of power required to open and close the door. If the forces are set too light, door travel may be interrupted by nuisance reversals in the down direction and stops in the up direction.

  • Page 25: Test The Safety Reversal System, Adjustment, Test The Protector System

    The door will not move more than an inch (2.5 cm), and the opener lights will flash. The garage door opener will not close from a remote if the indicator light in either sensor is off (alerting you to the fact that the sensor is misaligned or obstructed).

  • Page 26: Operation, Operation, Using Your Garage Door Opener

    • The wall-mounted Door Control: Hold the push button or bar down until the door starts to move. • The Keyless Entry (See Accessories): If provided with your garage door opener, it must be programmed before use. See Programming. When the opener is activated (with the safety reversing sensor correctly installed and aligned) 1.

  • Page 27: Using The Wall-mounted Door Control, To Open The Door Manually

    Using the Wall-Mounted Door Control THE MULTI-FUNCTION DOOR CONTROL Press the push button to open or close the door. Press again to reverse the door during the closing cycle or to stop the door while it's opening. Light feature Press the Light button to turn the opener light on or off.

  • Page 28

    CARE OF YOUR OPENER LIMIT AND FORCE ADJUSTMENTS: Weather conditions may FORCE CONTROLS cause some minor changes in door operation requiring some re-adjustments, particularly during the first year of operation. Pages 23 and 24 refer to the LIMIT CONTROLS limit and force adjustments. Only a screwdriver is required.

  • Page 29: Having A Problem

    1. My door will not close and the light bulbs blink on my motor unit: The safety reversing sensor must be connected and aligned correctly before the garage door opener will move in the down direction. • Verify the safety sensors are properly installed, aligned and free of any obstructions.

  • Page 30: Diagnostic Chart

    Diagnostics Installed Located On Safety Sensor Motor Unit Your garage door opener is programmed with self-diagnostic capabilities. The “Learn” button/diagnostic "Learn" LED will flash a number of times then pause signifying it Button has found a potential issue. Consult Diagnostic Chart below.

  • Page 31: Programming, Programming, To Add Or Reprogram A Hand-held Remote Control, To Erase All Codes

    The owner of the copyright in the garage door opener does not authorize the purchaser or supplier of the non-rolling code transmitter to circumvent that technical measure.

  • Page 32: To Add, Reprogram Or Change A Keyless Entry Pin

    To Add, Reprogram or Change a Keyless Entry PIN NOTE: Your new Keyless Entry must be programmed to operate your garage door opener. USING THE “LEARN” BUTTON 1. Press and release the “learn” button on motor unit. The learn indicator light will glow steadily for 30 seconds.

  • Page 33: Repair Parts, Repair Parts, Rail Assembly Parts, Installation Parts

    REPAIR PARTS Rail Assembly Parts Installation Parts KEY PART 41A5273-1 973LM 10A20 29B137 41A5047-1 41A2828 178B34 41A4353-1 41A5034 41A5266-1 41B4494-1 178B35 41A2770-6 114A2537 114A2537SP Spanish manual PART DESCRIPTION 4A1008 Master link kit 41B5424 Belt pulley bracket 41B3869-1 Complete trolley assembly 109B33 Trolley clip 2777BD...

  • Page 34: Motor Unit Assembly Parts

    Motor Unit Assembly Parts KEY PART NO. NO. DESCRIPTION 41A4371 Belt cap retainer 41A4885-5 Gear and sprocket assy., Complete with: Spring washer; Thrust washer; Retaining ring; Bearing plate; Roll pins (2); Drive gear and worm gear; Helical gear w/retainer and grease 41A2817 Drive/worm gear kit w/grease, Roll pins (2)

  • Page 35: Accessories

    995LM Remote Light Control: Enables homeowner to turn on a lamp, television or other appliance from their car with their garage door opener remote or from anywhere in their home with an additional LiftMaster Security✚ 3-Button Security✚ 973LM Includes visor clip.

  • Page 36: Warranty

    LIFETIME MOTOR AND BELT LIMITED WARRANTY The Chamberlain Group, Inc. (“Seller”) warrants to the first retail purchaser of this product, for the residence in which this product is originally installed, that it is free from defect in materials and/or workmanship for a period of one year from the date of purchase and that the motor and belt is free from defect in materials and/or workmanship for the lifetime of the product.

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