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GARAGE DOOR OPENER
Model 3280-390 1/2 HP
For Residential Use Only
Owner's Manual
Please read this manual and the enclosed safety materials carefully!
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Fasten the manual near the garage door after installation.
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The door WILL NOT CLOSE unless the Protector System
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properly aligned.
Periodic checks of the opener are required to ensure safe operation.
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The model number label is located on the front panel of your opener.
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®
The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 60126-1196
www.liftmaster.com
is connected and
®
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Table of Contents
Related Manuals for Chamberlain 3280-390 1/2 HP
Summary of Contents for Chamberlain 3280-390 1/2 HP
- Page 1 845 Larch Avenue Elmhurst, Illinois 60126-1196 www.liftmaster.com ® GARAGE DOOR OPENER Model 3280-390 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.
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Page 2: Table Of Contents
TABLE OF CONTENTS Adjustment 23-25 Introduction Adjust the travel limits ......23 Safety symbol and signal word review....2 Adjust the force . -
Page 3: Preparing Your Garage Door
Preparing your garage door Before you begin: To prevent possible SERIOUS INJURY or DEATH: • Disable locks. • ALWAYS call a trained door systems technician if garage • Remove any ropes connected to garage door. door binds, sticks, or is out of balance. An unbalanced garage door may not reverse when required. -
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 purchased. If anything is missing, carefully check the which contain the motor unit and all parts illustrated packing material. Parts may be stuck in the foam. below. Accessories will depend on the model Hardware for installation is also listed below. -
Page 6: Assembly
ASSEMBLY STEP 1 Attach the Rail to the Motor Unit To avoid SERIOUS damage to opener, ONLY use bolts/ fasteners mounted in top of motor unit. To avoid installation difficulties, do not run the garage door opener until instructed to do so. •... -
Page 7: Attach The Belt Cap Retainer
ASSEMBLY STEP 3 Attach the Belt Cap Retainer To avoid possible SERIOUS INJURY to fingers from moving garage door opener: • Position the belt cap retainer over the motor unit • ALWAYS keep hand clear of sprocket while operating opener. sprocket so the two holes in cap align with the two holes •... -
Page 8: Determine The Header Bracket Location
Unfinished INSTALLATION STEP 1 Ceiling OPTIONAL CEILING Determine the Header Bracket Location MOUNT HEADER BRACKET Header Wall Vertical Centerline To prevent possible SERIOUS INJURY or DEATH: of Garage Door • Header bracket MUST be RIGIDLY fastened to structural Structural support on header wall or ceiling, otherwise garage door Supports might not reverse when required. -
Page 9: Install The Header Bracket
INSTALLATION STEP 2 Install the Header Bracket Wall Mounting Holes You can attach the header bracket either to the wall above the garage door, or to the ceiling. Follow the instructions CEILING MOUNT ONLY The nail hole is for positioning which will work best for your particular requirements. -
Page 10: Attach The Rail To The Header Bracket
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. NOTE: If the door spring is in the way you’ll need help. -
Page 11: Position The Opener
INSTALLATION STEP 4 Position the Opener To prevent damage to garage door, rest garage door opener rail on 2x4 placed on top section of door. 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 Rail... -
Page 12: Hang The Opener
INSTALLATION STEP 5 Hang the Opener To avoid possible SERIOUS INJURY from a falling garage door opener, fasten it SECURELY to structural supports of the Three representative installations are shown. Yours may garage. Concrete anchors MUST be used if installing ANY be different. -
Page 13: Install The Door Control
INSTALLATION STEP 6 Install the Door Control To prevent possible SERIOUS INJURY or DEATH from Locate door control within sight of door at a minimum electrocution: height of 5 feet (1.5 m) where small children cannot reach, • Be sure power is not connected BEFORE installing door and away from moving parts of door and door hardware. -
Page 14: Install The Light
INSTALLATION STEP 7 Install the Light To prevent possible OVERHEATING of the endpanel or light socket: • Press the release tabs on both sides of lens. Gently • DO NOT use short neck or specialty light bulbs. rotate lens back and downward until the lens hinge is in •... -
Page 15: Electrical Requirements
INSTALLATION STEP 9 Electrical Requirements To prevent possible SERIOUS INJURY or DEATH from electrocution or fire: To avoid installation difficulties, do not run the opener • Be sure power is not connected to the opener, and at this time. disconnect power to circuit BEFORE removing cover to To reduce the risk of electric shock, your garage door establish permanent wiring connection. -
Page 16: Install The Protector System
INSTALLATION STEP 10 Install The Protector System ® Be sure power is not connected to the garage door opener BEFORE installing the safety reversing sensor. The safety reversing sensor must be connected and To prevent SERIOUS INJURY or DEATH from a closing aligned correctly before the garage door opener will garage door: move in the down direction. - Page 17 INSTALLING THE BRACKETS Be sure power to the opener is disconnected. Install Figure 1 and align the brackets so the sensors will face each other DOOR TRACK MOUNT (RIGHT SIDE) across the garage door, with the beam no higher than 6"...
- Page 18 MOUNTING AND WIRING THE SAFETY REVERSING Figure 5 SENSORS Wing Nut • Slide a 1/4"-20x1/2" carriage bolt head into the slot on 1/4"-20 each sensor. Use wing nuts to fasten sensors to brackets, with lenses pointing toward each other across the door.
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Page 19: Fasten The Door Bracket
INSTALLATION STEP 11 Fasten the Door Bracket Fiberglass, aluminum or lightweight steel garage doors WILL REQUIRE reinforcement BEFORE installation of door bracket. Follow instructions which apply to your door type as Contact your door manufacturer for reinforcement kit. illustrated below or on the following page. A horizontal reinforcement brace should be long enough to be secured to two or three vertical supports. - 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.
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Page 21: Ring Fastener
INSTALLATION STEP 12 Inner Trolley Connect Door Arm to Trolley Follow instructions which apply to your door type as Outer Trolley illustrated below and on the following page. SECTIONAL DOORS ONLY Clevis Pin 5/16"x1" Make sure garage door is fully closed. Pull the Ring Fastener emergency release handle to disconnect the outer trolley... -
Page 22: Connect The Door Arm To The Trolley
ALL ONE-PIECE DOORS Door Bracket Ring 1. Assemble the door arm, Figure 4: Fastener Nuts • Fasten the straight and curved door arm sections Lock 5/16"-18 Washers together to the longest possible length (with a 2 or 3 5/16" hole overlap). Clevis Pin Straight 5/16"x1-1/4"... -
Page 23: Adjustment
ADJUSTMENT STEP 1 Adjust the UP and DOWN Travel Limits Without a properly installed safety reversal system, persons (particularly small children) could be SERIOUSLY INJURED or Limit adjustment settings regulate the points at which the KILLED by a closing garage door. door will stop when moving up or down. -
Page 24: Adjust The Force
ADJUSTMENT STEP 2 Adjust the Force Without a properly installed safety reversal system, persons Force adjustment controls are located on the back panel (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing garage door. of the motor unit. Force adjustment settings regulate the amount of power required to open and close the door. -
Page 25: Test The Safety Reversal System
ADJUSTMENT STEP 3 Test the Safety Reversal System Without a properly installed safety reversal system, persons (particularly small children) could be SERIOUSLY INJURED or TEST KILLED by a closing garage door. • Safety reversal system MUST be tested every month. •... -
Page 26: Operation
OPERATION IMPORTANT SAFETY INSTRUCTIONS WARNING To reduce the risk of SEVERE INJURY or DEATH: 1. READ AND FOLLOW ALL WARNINGS AND 8. NEVER use handle to pull garage door open or closed. If INSTRUCTIONS. rope knot becomes untied, you could fall. 2. -
Page 27: Using The Wall-Mounted Door Control
B) To operate one door using all three buttons on the Using the Wall-Mounted Door Control hand-held remote: You may program the remote to THE MULTI-FUNCTION DOOR CONTROL open the door with the large button, Press the push button to open or close the door. Press close it with the middle button, and Open again to reverse the door during the... -
Page 28: Care Of Your Garage Door Opener
THE REMOTE CONTROL BATTERY CARE OF YOUR OPENER LIMIT AND FORCE ADJUSTMENTS: Weather conditions may cause To prevent possible SERIOUS INJURY or DEATH: some minor changes in door • NEVER allow small children near batteries. operation requiring some • If battery is swallowed, immediately notify doctor. re-adjustments, particularly To reduce risk of fire, explosion or chemical burn: during the first year of... -
Page 29: Having A Problem
HAVING A PROBLEM? 1. My door will not close and the light bulbs blink on my motor unit: The safety reversing sensor must be Bell Wire connected and aligned correctly before the garage door opener will move in the down direction. •... -
Page 30: Diagnostic Chart
Bell Wire Diagnostics Located On Installed Safety Reversing Motor Unit Sensor LED or Diagnostic Your garage door opener is programmed with self-diagnostic capabilities. The “Learn” button/diagnostic LED "Learn" Safety Reversing Sensor Button will flash a number of times then pause signifying it has found a potential issue. -
Page 31: Programming
PROGRAMMING NOTICE: If this Security ✚ garage door opener is operated with a non-rolling code transmitter, the technical measure in ® the receiver of the garage door opener, which provides security against code-theft devices, will be circumvented. 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 USING THE MULTI-FUNCTION DOOR CONTROL 1. Press and release the “learn” NOTE: This method requires two people if the Keyless button on motor unit. -
Page 33: Repair Parts
REPAIR PARTS Rail Assembly Parts PART DESCRIPTION 4A1008 Master link kit 41B5424 Belt pulley bracket 41B3869-3A Complete trolley assembly 2777BD One-piece rail 7' (2.1 m) 2778BD Complete rail 8' (2.4 m) 2770BD Complete rail 10' (3 m) 41A5434-11 Full belt assembly 41B4103 Tensioner assembly 83A11-2... -
Page 34: Motor Unit Assembly Parts
Motor Unit Assembly Parts (Down) LIMIT SWITCH ASSY. Brown Contact Wire Grey Wire Drive Gear Center Limit (Up) Yellow Contact Contact Wire KEY PART KEY PART NO. NO. DESCRIPTION DESCRIPTION 41A4371 Belt cap retainer 41C4842 Universal replacement motor & bracket assembly, 41A4885-5 Gear and sprocket assembly., Complete with: Motor, worm, Complete with: Spring washer;... -
Page 35: Accessories
ACCESSORIES 1702LM Outside Quick Release: 973LM 3-Button Security✚ ® Remote Control: Required for a garage with NO access Includes visor clip. door. Enables homeowner to open garage door manually from outside by disengaging trolley. 974LM 4-Button Security✚ Remote Control: ® Includes visor clip. -
Page 36: Repair Parts And Service
ONE YEAR LIMITED WARRANTY FOR EVERCHARGE STANDBY POWER BATTERY 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 60 full months from the date of purchase and that the motor and belt are free from defect in materials and/or workmanship for a period of the lifetime of the product.