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Question posted by krajozee10 on April 16th, 2014

How To Change Liftmaster 485lm Battery

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Answer #1: Posted by waelsaidani1 on April 16th, 2014 11:48 AM

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Hello watch video guide here: http://www.youtube.com/watch?v=zHnpIqv6Fu4

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...

3850 Elite Series Manual - Page 2

... the Protector System 25 Operation 26-33 Operation safety instructions 26 Using garage door opener 26 Using the wall-mounted door control 27 Using the remote control 28 Troubleshooting 28 The remote control battery 28 EverCharge® Standby Power System (optional 29 To open the door manually 30 Care of serious injury or death if you do...

3850 Elite Series Manual - Page 3

...: • Disable locks. • Remove any binding or sticking. 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 entanglement. Sectional Door One-Piece Door Tools needed During assembly, installation and adjustment of which are under EXTREME tension. •...

3850 Elite Series Manual - Page 5

...3850 (1) 3850-267 (2) SECURITY✚® Keyless Entry Model 3850-267 (1) ONLY Motor Unit with Light Lenses 2-Conductor Bell Wire White & White/Red Belt Pulley Bracket Trolley Optional EBvearttCehryarge® Stan(PdbacykPeodwSeerpSaryastteelym) (battery... 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.

3850 Elite Series Manual - Page 6

...on the square end. Use only these bolts! To avoid SERIOUS damage to opener, ONLY use any other bolts will cause serious damage to door opener. • Position belt over belt pulley. Figure 1 Trolley Nut Ring Trolley ...avoid installation difficulties, do not run the garage door opener until the spring releases and snaps the nut ring against the trolley (Figure 1). Tighten bolts ...

3850 Elite Series Manual - Page 7

... ALL locks and remove ALL ropes connected to garage door BEFORE installing opener to cables, spring assemblies and other hardware MUST be caught in plain view on properly balanced and lubricated garage door. Place entrapment warning label on wall next to fingers from electrocution, disconnect ALL electric and battery power BEFORE performing ANY service or maintenance...

3850 Elite Series Manual - Page 11

... top section or panel hits the trolley when you raise the door, pull down on top section of the door. • Using a stepladder as illustrated. SECTIONAL DOOR OR ONE-PIECE DOOR WITH TRACK A 2x4 laid flat is convenient for setting an ideal door-to garage door, rest garage door opener rail on 2x4 placed on the trolley release arm to...

3850 Elite Series Manual - Page 12

... 5/16"-18x7/8" hex bolts, lock washers and nuts. 6. This bracket and fastening hardware are shown. Measure the distance from a falling garage door opener, fasten it SECURELY to opener at this time. Fasten the opener to the structural support. 2. NOTE: DO NOT connect power to structural supports of the hanging bracket to required lengths. 3. FINISHED CEILING...

3850 Elite Series Manual - Page 13

... wire to the W (2) and white/red wire to the R (1) (Figure 2). 2. Strip 7/16" (11 mm) of insulation from end of the door control to temperatures below -22° F (-30° C) may be connected to each garage door opener. For pre-wired installations (as in new home construction), it may damage the LCD screen. Fasten with...

3850 Elite Series Manual - Page 14

... protective gloves and eye protection when changing the battery or working around the battery compartment. Gently rotate lens back and downward until the lens hinge is in each socket. Then the lights will turn OFF. • Reverse the procedure to close the lens. • Use A19, standard neck garage door opener bulbs for approximately 4-1/2 minutes when...

3850 Elite Series Manual - Page 15

... from electrocution or fire: • Disconnect ALL electric and battery power BEFORE performing ANY service or maintenance. • Garage door installation and wiring MUST be grounded. • Reinstall the ... cord, 2-wire adapter, or change plug in the top of all vehicles to the green ground screw. Be sure the opener is required by your garage door opener has a grounding type plug with...

3850 Elite Series Manual - Page 16

... the wall framing. This required safety device MUST NOT be securely fastened to the garage door opener BEFORE installing the safety reversing sensor. Safety Reversing Sensor 6" (15 cm) max. The units must be connected and aligned correctly before the garage door opener will flash 10 times. above the floor. If an obstruction breaks the light beam...

3850 Elite Series Manual - Page 24

... stopping exactly where you would like it is balanced properly and is not sticking or binding. If the garage door opener cannot open (UP). 4. The door will open and close (DOWN). 3. The door will close the door fully, inspect the door to enter unit into the Force Adjustment Mode. Figure 1 n n LED Black Button Purple Button Figure 2 Push Purple button...

3850 Elite Series Manual - Page 25

... a 1-1/2" (3.8 cm) board (or a 2x4 laid flat) on the obstruction, it is misaligned or obstructed). The door will not close the door. The garage door opener will not move more than 1" (2.5 cm), and the opener lights will flash. Door MUST reverse on contact with 1-1/2" high (3.8 cm) object (or 2x4 laid flat) on the 1-1/2" (3.8 cm) board (or 2x4 laid...

3850 Elite Series Manual - Page 26

... Entry System. ALL repairs to deactivate any of which changes with garage door control push buttons or remote controls. 3. ALWAYS disconnect electric power to operate or play with each use handle to pull garage door open , the door will reverse. If the obstruction interrupts the sensor beam, the opener lights will also turn on , then press and hold...

3850 Elite Series Manual - Page 31

... the outer nut until the trolley spring is not lit properly: • Check battery connections. 8. If battery status LED is approximately 1-1/4" (3.18 cm) in length. • If the trolley does not move in particular can affect door travel limits. My garage door opener beeps: • A solid LED with beep, sounding approximately every 2 seconds, indicates the motor...

3850 Elite Series Manual - Page 32

... Chart Diagnostics Located On Motor Unit "Learn" Button LED or Diagnostic LED "Learn" Button Installed Safety Reversing Sensor Your garage door opener is not recognized. Symptom: The door doesn't activate from the door control. • Inspect door control/wires for a short (staple in wire), correct wiring polarity (black/white wires reversed), broken or disconnected wires, replace...

3850 Elite Series Manual - Page 34

... the motor unit lights blink, it . Below are not installed, two clicks will be programmed to operate other Security✚® garage door openers. 34 If light bulbs are now erased. Your garage door opener has already been programmed at the factory to operate with additional 315 MHz Security✚® remote controls. It has learned...

3850 Elite Series Manual - Page 35

... and hold the enter button. 2. The opener light will blink four times. 3. After a programmed number of hours or number of your garage door opener. The opener light will blink twice. If light bulbs... learned. LOCK LIGHT To change an existing, known PIN If the existing PIN is already mounted outside the garage. 1. To Add, Reprogram or Change a Keyless Entry PIN NOTE...

3850 Elite Series Manual - Page 38

.... Laser Park Assist: Laser enables homeowners to protect LiftMaster® garage door openers against damage from car, bedside, or anywhere in the garage. SECURITY✚® 4-Button Remote Control : Includes visor clip. Includes battery. Enables homeowner to the garage door opener. ACCESSORIES 1702LM Outside Quick Release: Required for a garage with model 3850 only.