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Question posted by Kmcele on December 9th, 2013

How To Install Liftmaster Backup Garage Door Battery

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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

... 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 your garage door and/or the garage door opener if you do not comply with the warnings that accompany it is installed, operated, maintained and tested in strict accordance with the cautionary...

3850 Elite Series Manual - Page 3

... and adjustment of which are under EXTREME tension. • Disable ALL locks and remove ALL ropes connected to garage door BEFORE installing and operating garage door opener to avoid malfunction and damage. Release the door. Carpenter's Level (optional) 12 Tape Measure Pencil Stepladder Drill Bits Drill 3/16", 5/16" and 5/32" Sockets and Wrench 1/2", 5/8", 7/16", 9/16...

3850 Elite Series Manual - Page 5

...installation is also listed below . If anything is missing, carefully check the packing material. LOCK LIGHT SLmCaDrtMCootniotrnolDPeatencetli®ng Door Control Console SECURITY✚® 3-Button Remote Control Models 3850 (1) 3850-267 (2) SECURITY✚® Keyless Entry Model 3850...Nut 1/4"-20 (2) 5 Carton Inventory Your garage door opener is packaged in the foam. Parts ...

3850 Elite Series Manual - Page 6

...bolts mounted in top of motor unit. Tighten bolts securely. To avoid SERIOUS damage to opener, ONLY use any other bolts will cause serious damage to do so. • Remove...7/16" open end wrench on the square end. Use only these bolts! ASSEMBLY STEP 1 Attach the Rail to the Motor Unit To avoid installation difficulties, do not run the garage door opener until instructed to door opener. •...

3850 Elite Series Manual - Page 7

... WARNING To reduce the risk of 5 feet (1.5 m). • away from electrocution, disconnect ALL electric and battery power BEFORE performing ANY service or maintenance. 7 Please read the following warnings before proceeding to avoid entanglement. 5. Install garage door opener ONLY on inside of installation, test safety reversal system. Attach with #8x3/8" hex screws provided.

3850 Elite Series Manual - Page 11

... used to determine the correct mounting height from ceiling. 11 Rail Door 2x4 is convenient for setting an ideal door-to-rail distance. • Raise the opener onto a stepladder. Slide the outer trolley toward the motor unit. To prevent damage to garage door, rest garage door opener rail on 2x4 placed on the trolley release arm to disconnect...

3850 Elite Series Manual - Page 12

... be angled (Figure 1) to the structural support. 2. Measure the distance from a falling garage door opener, fasten it SECURELY to structural supports of the rail surface where the trolley slides with the header bracket if the bracket is not centered above the door). 7. Remove the 2x4. Figure 1 Measure Distance Bolt 5/16"-18x7/8" Lock Washer 5/16...

3850 Elite Series Manual - Page 13

... a staple, creating a short or open position but will travel . • ALWAYS keep garage door in tabpwusithhisnctraebwwdritivher tip screwdriver tip Antenna Red White Grey Red White Grey 13 To prevent possible SERIOUS INJURY or DEATH from a closing garage door. INSTALLATION STEP 6 Install the Smart Control Panel® Locate door control within sight of garage door, out of reach of...

3850 Elite Series Manual - Page 14

... neck garage door opener bulbs for approximately 4-1/2 minutes when power is in the fully open position....battery cover. NOTE: Use only standard light bulbs. Channel Battery Battery Cover INSTALLATION STEP 8 Install the Lights • Press the release tabs on battery. • Verify the battery wires are seated in each socket. Use ONLY incandescent. To prevent damage to the opener...

3850 Elite Series Manual - Page 15

... cord. • Connect the black (line) wire to pull door open or closed. Secure with a third grounding pin. To prevent possible SERIOUS INJURY or DEATH 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 cover. RIGHT...

3850 Elite Series Manual - Page 16

.... The invisible light beam path must be connected and aligned correctly before the garage door opener will move in masonry construction, add a piece of wood at each other hardware) may interrupt the beam while the door is not connected to the garage door opener BEFORE installing the safety reversing sensor. above floor Invisible Light Beam Protection Area Facing...

3850 Elite Series Manual - Page 17

... hugging the back edge of three ways, as follows. Garage door track installation (preferred): • Slip the curved arms over the rounded edge of each door track, with the beam no higher than 6" (15 cm) above the floor. INSTALLING THE BRACKETS Be sure power to the opener is needed, an extension bracket (see Accessories) to elevate...

3850 Elite Series Manual - Page 20

... IS NEEDED FOR LIGHTWEIGHT GARAGE DOORS (FIBERGLASS, ALUMINUM, STEEL, DOORS WITH GLASS PANEL, ETC.). (NOT PROVIDED) Door Bracket Nut 5/16"-18 Door Bracket For a door with the warnings and reinforcement instructions on the top edge of the door if required for your installation needs. They apply to fasten door bracket. NOTE: The door bracket may be installed on the previous page...

3850 Elite Series Manual - Page 21

... when opener is fully closed. INSTALLATION STEP 13 Connect Door Arm to Trolley Follow instructions which apply to your door type as...door) about 6" (15 cm) from the inner trolley. Select holes as far apart as possible to Adjustment Step 1, page 23. Pull the emergency release handle to disconnect the outer trolley from the solid end. SECTIONAL DOORS ONLY Make sure garage door...

3850 Elite Series Manual - Page 23

... BLACK PURPLE Push and hold the black button until the door reaches the desired UP (open ) limit and begins closing garage door. • Incorrect adjustment of garage door travel limits will interfere with 1-1/2" (3.8 cm) high object (or 2x4 laid flat) on the door, you may toggle the door back and forth using the black and purple buttons. ADJUSTMENT...

3850 Elite Series Manual - Page 24

... Button Purple Button Figure 3 or LOCK LIGHT 24 Push the door control or programmed remote control. The LED will open (UP). 4. 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...

3850 Elite Series Manual - Page 25

... beyond a straight up and down direction. The garage door opener will flash. If the opener closes the door when the safety reversing sensor is misaligned or obstructed). Without a properly installed safety reversing sensor, persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing garage door. • Safety reversal system MUST be tested every month. •...

3850 Elite Series Manual - Page 31

... Chart on the following page. 2. If battery status LED is normal. My garage door opener beeps: • A solid LED 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 against the stop . Refer to Installation Step 10: Install The Protector System®. • Check...

3850 Elite Series Manual - Page 38

...Includes battery. ACCESSORIES 1702LM Outside Quick Release: Required for a garage with model 3850 only. Laser Park Assist: Laser enables homeowners to the garage door opener. Surge Protector: The Garage Door Opener Surge Protector is open garage door manually from outside by disengaging trolley. 373P 41A5281 Extension Brackets: (Optional) For safety reversing sensor installation onto...