Instruction/ maintenance manual of the product ELITE 3840 Chamberlain
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The Chamberlain Group, Inc. 845 Larch Avenue Elmhurst, Illinois 60126-1196 www.LiftMaster.com GARAGE DOOR OPENER Model 3840 Owner’s Manual ■ Please read this manual and the enclosed safety materials carefully! ■ Fasten the manual near the garage door after installation.
2 Introduction 2-5 Safety symbol and signal word review . . . . . . . . . . . . . . . 2 Preparing your garage door . . . . . . . . . . . . . . . . . . . . . . . 3 Tools needed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Planning .
3 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. To prevent possible SERIOUS INJURY or DEATH: • ALWAYS call a trained door systems technician if garage door binds, sticks, or is out of balance.
4 Horizontal and vertical reinforcement is needed for lightw eight garage doors (fiberglass, steel, aluminum, door with glass panels, etc.). See page 19 f or details.
5 Straight Door Arm Section Curved Door Arm Section Safety Labels and Literature Header Brack et UP CEILING MOUNT ONL Y 2 Conductor Bell Wire White & White/Red Remote Control Visor Clip Door Brack.
6 Rail Sprocket Rail Assembly Release arm Coupling Motor Unit Bracket Motor Unit Sprocket Foam Packaging Hex Bolts 1/4"-20x7/16" Hex Bolts 1/4-20x7/16" ASSEMBLY STEP 1 Fasten the Rail to the Motor Unit To avoid installation difficulties, do not run the garage door opener until instructed to do so.
7 To reduce the risk of SEVERE INJURY or DEATH: INSTALLATION IMPORTANT INSTALLATION INSTRUCTIONS 1. READ AND FOLLOW ALL INSTALLATION WARNINGS AND INSTRUCTIONS. 2. Install garage door opener ONLY on properly balanced and lubricated garage door. An improperly balanced door may not reverse when required and could result in SEVERE INJURY or DEATH.
8 INSTALLATION STEP 1 Determine the Header Bracket Location Installation procedures vary according to garage door types. Follow the instructions which apply to your door. 1. Close the door and mark the inside vertical centerline of the garage door. 2.
9 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.
10 Header Brack et Rail Brack et Opener Car ton or T emporar y Suppor t Header W all Garage Door Rail Clevis Pin 5/16"x2-3/4" Ring F astener Header Brack et Spacers Rail Brack et Rail Clevis.
11 INSTALLATION STEP 4 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.
12 DOOR TRACK MOUNT (RIGHT SIDE) Indicator Light Lens Lip Safety Reversing Sensor Bracket Door Track FLOOR MOUNT (RIGHT SIDE) WALL MOUNT (RIGHT SIDE) Indicator Light Safety Reversing Sensor Bracket Le.
13 Wing Nut 1/4"-20 Staples Carriage Bolt 1/4"-20x1/2" HARDWARE SHOWN ACTUAL SIZE Carriage Bolt 1/4"-20x1/2" Bra cket Bell Wire Lens Wing Nut 1/4"-20 Wire Clips Rail Sens.
14 ONE-PIECE DOOR WITHOUT TRACK A 2x4 on its side 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. • Open the door all the way and place a 2x4 on its side on the top section of the door beneath the rail.
15 INSTALLATION STEP 6 Hang the Opener Three representative installations are shown. Yours may be different. Hanging brackets should be angled (Figure 1) to provide rigid support. On finished ceilings (Figure 2 and Figure 3), attach a sturdy metal bracket to structural supports before installing the opener.
16 INSTALLATION STEP 7 Install the Smart Control Panel ® Locate door control within sight of door, at a minimum height of 5 feet (1.5 m) where small children cannot reach, away from moving parts of door and door hardware. If installing into drywall, drill 5/32" holes and use the anchors provided.
17 INSTALLATION STEP 9 Install the Lights • Press the release tabs on both sides of lens. Gentlyrotate lens back and downward until the lens hinge is in the fully open position. Do not remove the lens. • Install a 100 watt maximum light bulb in each socket.
18 INSTALLATION STEP 11 Electrical Requirements 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.
19 UP Self-Threading Screw 1/4"-14x5/8" Vertical Centerline of Garage Door INSTALLATION STEP 13 Fasten the Door Bracket Follow instructions which apply to your door type as illustrated below and on the following page. A horizontal reinforcement brace should be long enough to be secured to two or three vertical supports.
20 Header W all V ertical Centerline of Garage Door Finished Ceiling Optional Placement of Door Bracket Header Bracket Door Bracket 2x4 Support For a door with no exposed framing, or for the optional installation, use lag screws 5/16"x1-1/2" (Not Provided) to fasten door bracket.
21 Cut this end Lock Washers 5/16" Nuts 5/16"-18 Bolts 5/16"-18x7/8" Door Bracket Ring Fastener Door Bracket Straight Door Arm Curved Door Arm Inner Trolley Outer Trolley Emergency.
22 Outer Trolley Door Arm Connector Hole Open Door Door with Backward Slant (Incorrect) Correct Angle Inner Trolley Closed Door Outer Trolley Door Arm Emergency Release Handle Inner Trolley Door Arm Connector Hole ALL ONE-PIECE DOORS 1.
23 ADJUSTMENT STEP 1 Program the Travel Limits Travel limits regulate the points at which the door will stop when moving up or down. Adjust the position of the door by using the black and purple buttons. Black moves the door UP (open) and purple moves the door DOWN (close).
24 Black Button Purple Button LED Push Purple button twice to enter unit into Force Adjustment Mode Without a properly installed safety reversal system, persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing garage door.
25 Safety Reversing Sensor Safety Reversing Sensor Without a properly installed safety reversing sensor, persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing garage door.
26 OPERATION Using Your Garage Door Opener Your Security ✚ ® opener and hand-held remote control have been factory-set to a matching code which changes with each use, randomly accessing over 100 billion new codes. Your opener will operate with up to eight Security ✚ ® remote controls and one Security ✚ ® Keyless Entry System.
27 Using the Smart Control Panel ® THE SMART CONTROL PANEL ® Press the push bar 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.
28 To Open the Door Manually DISCONNECT TROLLEY: The door should be fully closed if possible. Pull down on the emergency release handle (so that the trolley release arm snaps into a vertical position) and lift the door manually.
29 Using the Remote Control NOTE: To activate the remote control functions, pull out the plastic pull tab protruding from the remote control housing. This remote control is equipped with a proximity lighting feature. When moving a hand within close proximity to the remote control, the LED lights turn on for 3 seconds.
30 NOTE: LED is most visible with worklight off. GREEN LED: All systems are normal. • A solid LED light indicates the battery is fully charged. • A flashing LED indicates the battery is being charged. NOTE: Battery do not have to be fully charged to operate the motor unit.
31 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.
32 Diagnostic Chart Symptom: One or both of the Indicator lights on the safety reversing sensors do not glow steady. • Inspect sensor wires for a short (staple in wire), correct wiring polarity (black/white wires reversed), broken or disconnected wires, replace/attach as needed.
33 Smart Control Panel ® Messages The following messages are contained within the Smart Control Panel ® and may appear during the operations of the opener: SAFETY SENSORS CHECK ALIGNMENT, BLOCKAGE OR MISWIRING. SEE OWNER’S MANUAL. SAFETY SENSORS MALFUNCTION.
34 To Erase All Codes From Motor Unit Memory To deactivate any unwanted remote, first erase all codes: Press and hold the “learn” button on motor unit until the learn indicator light goes out (approximately 6 seconds). All previous codes are now erased.
35 1. Press the PROG <Learn> button on the Smart Control Panel ® . 2. Press the PROG <Learn> button again to confirm Learn Mode. 3. Enter a four digit personal identification number (PIN) of your choice on the keypad. Then press enter. 4.
36 1 6 2 3 5 4 7 8 11 12 6 NO TICE UP CEILING MOUNT ONLY 9 7 1 5 10 13 14 LOCK LIGHT 3 4 2 KEY PART NO. NO. DESCRIPTION 1 398LM Smart Control Panel ® 2 373P 3-Button remote control 3 10A19 3V2016 Lit.
37 Motor Unit Assembly Parts KEY PART NO. NO. DESCRIPTION 1 41C588 Drive shaft cover 2 41B135 Line cord 3 41B6701 Filter 4 41A6790 Wire harness kit 5 41A6538 Motor with position sensor 6 41C6551 Positioning sensor 7 41B0024 Drive belt 8 41DS002-2 Logic board KEY PART NO.
38 ACCESSORIES LOCK L IG HT C L OS E D OP E N 915LM 1702LM Outside Quick Release: Required for a garage with NO access door. Enables homeowner to open garage door manually from outside by disengaging trolley. Extension Brackets: (Optional) For safety sensor installation onto the wall or floor.
39 NOTES.
© 2009, The Chamberlain Group, Inc. 114A3741D All Rights Reserved LIFTMASTER ® SERVICE IS ON CALL OUR LARGE SERVICE ORGANIZATION SPANS AMERICA INSTALLATION AND SERVICE INFORMATION IS AS NEAR AS YOUR TELEPHONE. SIMPLY DIAL OUR TOLL FREE NUMBER: 1-800-528-9131 www.
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