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Question posted by Gaydaves on May 4th, 2014

How To Unplug Motor Unit To Install N For Garage Door Opener Elite Series Model

3850

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Related LiftMaster 3850 Manual Pages

3850 Elite Series Manual - Page 1

® GARAGE DOOR OPENER Models 3850 3850-267 For Residential Use Only Com Details The Chamberlain Group, Inc. 845 Larch Avenue Elmhurst, Illinois 60126-1196 www.liftmaster.com patible with See Page 29 for 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...

3850 Elite Series Manual - Page 2

... change a Keyless Entry PIN 35 Repair Parts 36-37 Rail assembly parts 36 Installation parts 36 Motor unit assembly parts 37 Accessories 38 Notes 39 Repair Parts and Service 40 Warranty 40 INTRODUCTION Safety Symbol and Signal Word Review This garage door opener has been designed and tested to offer safe service provided it . Read the...

3850 Elite Series Manual - Page 4

... of your opener. Torsion Spring Extension Spring OR Motor Unit --- --- -- See page 12. Additional materials may find it helpful to refer back to this page and the accompanying illustrations as you proceed with glass panels, etc.). See page 19 for lightweight garage doors (fiberglass, steel, aluminum, door with the installation of your garage area to your installation. Safety...

3850 Elite Series Manual - Page 5

... 1/4"-14x5/8" (2) Screw 6-32x1" (2) Insulated Staples (10) Ring Fastener (3) Dry Wall Anchors (2) Rope Handle Rail Grease Carriage Bolt 1/4"-20x1/2" (2) Wing Nut 1/4"-20 (2) 5 Carton Inventory Your garage door opener is packaged in the foam. Accessories will depend on the model purchased. Parts may be stuck in two cartons which contain the motor unit and all parts illustrated below .

3850 Elite Series Manual - Page 6

... the spring for optimum 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 on top of motor unit. • Align rail and styrofoam over the motor unit belt pulley. Use only these bolts! Use of...

3850 Elite Series Manual - Page 7

... Cap Retainer • Position the belt cap retainer over the motor unit belt pulley so the three holes in cap align with #8x3/8" hex screws provided. An improperly balanced door may not reverse when required and could be made by a trained door systems technician BEFORE installing opener. 4. Install garage door opener 7 feet (2.1 m) or more above floor. 7. NEVER wear watches, rings...

3850 Elite Series Manual - Page 11

... remain disconnected until Installation Step 12 is used to determine the correct mounting height from the floor to the top of the door. • Using a stepladder as illustrated. Do not position the opener more than 4" (10 cm) above this point. Slide the outer trolley toward the motor unit. To prevent damage to garage door, rest garage door opener rail on...

3850 Elite Series Manual - Page 12

... Provided) Bolt 5/16"-18x7/8" Lock Washer 5/16" Nut 5/16"-18 12 INSTALLATION STEP 5 Hang the Opener Three representative installations are not provided. 1. Cut both pieces of the garage. Hanging brackets should be used if installing ANY brackets into masonry. Measure the distance from a falling garage door opener, fasten it SECURELY to structural supports of the hanging bracket to...

3850 Elite Series Manual - Page 13

... to the two screw terminals on the motor unit: white to white and white/red to operate the same garage door opener, it may damage the LCD screen. Fasten with a small flat-head screwdriver (Figure 1). NEVER permit anyone to cross path of closing garage door: • Install door control within sight of door, at a minimum height of 5 feet (1.5 m) where small...

3850 Elite Series Manual - Page 14

...Use ONLY incandescent. INSTALLATION STEP 7 Install the EverCharge® Standby Power System (optional) • Make sure motor unit is unplugged. • Using a Phillips head screwdriver, remove the battery cover on the motor unit. • Partially insert battery into motor unit with terminals facing out. • Connect the red (+) and black (-) wires from motor unit to the opener: • DO...

3850 Elite Series Manual - Page 15

...motor unit: • Remove the motor unit cover screws and set the cover aside. • Remove the attached 3-prong cord. • Connect the black (line) wire to the screw on the silver terminal; To prevent possible SERIOUS INJURY or DEATH from a falling garage door... match or lighter to install the proper outlet. To make it is required by your garage door opener has a grounding type ...

3850 Elite Series Manual - Page 16

... reversing sensor must be connected and aligned correctly before the garage door opener will detect an obstacle in the path of its electronic beam. The units must be unobstructed. If it is necessary. Either can be installed on the wall, the brackets must be installed inside the garage. The mounting brackets are available if needed. The sending...

3850 Elite Series Manual - Page 22

... on the emergency release handle and sliding the outer trolley back toward the motor unit. • Connect the curved door arm section to the longest possible length (with a 2 or 3 hole overlap). • Make sure the garage door is being opened or closed . Figure 4 Door Bracket Clevis Pin 5/16"x1-1/4" Ring Fastener Straight Arm Bolts 5/16"-18x7/8 Lock...

3850 Elite Series Manual - Page 24

If the garage door opener cannot open and close the door. 1. Without a properly installed safety reversal system, persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing garage door. • Too much force on garage door will interfere with 1-1/2" (3.8 cm) high object (or 2x4 laid flat) on contact with proper operation of force required to open and close ...

3850 Elite Series Manual - Page 25

... more than 6" (15 cm) above the floor), call for a trained door systems technician. Without a properly installed safety reversal system, persons (particularly small children) could be tested. The garage door opener will not move more than 1" (2.5 cm), and the opener lights will flash. ADJUST • If the door stops on the 1-1/2" (3.8 cm) board (or 2x4 laid flat), remove...

3850 Elite Series Manual - Page 29

...motor unit is activating the door and is unplugged for one to operate the motor unit. To obtain maximum battery life and prevent damage, disconnect the battery when motor unit... Test the installed battery with...unit is operating on battery power and that the battery charge is low. • To test the battery is functioning properly, open and close the garage door. • Re-connect the motor unit...

3850 Elite Series Manual - Page 31

... with beep, sounding approximately every 2 seconds, indicates the motor unit is activating the door and is operating off when door is open: • The garage door opener is low. • If a red LED remains on when the safety reversing sensor beam has been obstructed. Having a Problem (Troubleshooting) NOTE: Always unplug battery prior to Operation section; The trolley should travel...

3850 Elite Series Manual - Page 32

... steadily, receiving indicator light is programmed with jumper wire. Bell Wire Safety Reversing Sensor Diagnostic Chart Diagnostics Located On Motor Unit "Learn" Button LED or Diagnostic LED "Learn" Button Installed Safety Reversing Sensor Your garage door opener is dim or flashing. • Realign receiving eye sensor, clean lens and secure brackets. OR 2 FLASHES Safety reversing sensors...

3850 Elite Series Manual - Page 34

... heard. *3-Button Remotes (315 MHz) If provided with your garage door opener, the large button is operated with additional 315 MHz Security✚® remote controls. When the motor unit lights blink, it . All previous codes are not installed, two clicks will glow steadily for programming your garage door. 3. Additional buttons on the hand-held Remote Control USING...

3850 Elite Series Manual - Page 35

... the door even after it has expired. To set a temporary PIN: 1. This feature has been activated at the factory. Press the PROG button on motor unit. Release the # button. 2. One Button Close: Opener can be heard. 2. LOCK LIGHT To change an existing, known PIN If the existing PIN is already mounted outside the garage. 1. Press...