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Question posted by moe4bsacre on March 5th, 2014

How To Install A Backup Battery For Liftmaster Elite 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

... 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 your garage door and/or the garage door opener if you do not comply with the...

3850 Elite Series Manual - Page 3

..., sticks, or is not sticking or binding: 1. 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. Lift the door about halfway as illustrated below. Preparing your garage door Before you begin: • Disable locks. • Remove any binding...

3850 Elite Series Manual - Page 5

...installation is also listed below . LOCK LIGHT SLmCaDrtMCootniotrnolDPeatencetli®ng Door Control Console SECURITY✚® 3-Button Remote Control Models 3850 (1) 3850-267 (2) SECURITY✚® Keyless Entry Model 3850... Bolt 1/4"-20x1/2" (2) Wing Nut 1/4"-20 (2) 5 Carton Inventory Your garage door opener is packaged in the foam. Parts may be stuck in two cartons ...

3850 Elite Series Manual - Page 6

...Unit To avoid installation difficulties, do not run the garage door opener until instructed to door opener. • Position belt over belt pulley. Tighten bolts securely. To avoid SERIOUS damage to opener, ONLY use ...about 1/4 turn until it firmly against the trolley (Figure 2). • Place a 7/16" open end wrench on top of motor unit. Washered Bolt 5/16"-18x1/2" Rail Hole USE ONLY ...

3850 Elite Series Manual - Page 7

... before proceeding to fingers from electrocution, disconnect ALL electric and battery power BEFORE performing ANY service or maintenance. 7 To avoid possible SERIOUS INJURY to the installation section. READ AND FOLLOW ALL INSTALLATION WARNINGS AND INSTRUCTIONS. 2. Install garage door opener 7 feet (2.1 m) or more above floor. 7. Door MUST reverse on contact with #8x3/8" hex screws provided...

3850 Elite Series Manual - Page 11

... unit. Header Bracket Top of Motor Unit Top of door. You will need help at this point. To prevent damage to garage door, rest garage door opener rail on 2x4 placed on the trolley release arm to -rail distance. • Raise the opener onto a stepladder. INSTALLATION STEP 4 Position the Opener Follow instructions which apply to determine the correct mounting...

3850 Elite Series Manual - Page 12

...bracket. 8. FINISHED CEILING - Measure the distance from a falling garage door opener, fasten it SECURELY to the structural support. 2. Remove the ... door (or in the structural supports. 4. Operate the door manually. This bracket and fastening hardware are shown. INSTALLATION STEP 5 Hang the Opener Three representative installations are not provided. 1. Yours may be used if installing...

3850 Elite Series Manual - Page 13

... by color: white wire to the W (2) and white/red wire to each garage door opener. The trolley will not return to use the anchors provided. Adjust screw for snug fit. • Drill and install top screw with the operation of the buttons, loosen the top mounting screw. HARDWARE SHOWN ACTUAL SIZE Screw 6ABx1-1/4" (standard...

3850 Elite Series Manual - Page 14

... battery or working around the battery compartment. NOTE: Use only standard light bulbs. 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 power is in each socket. The use of lens. Do not remove the lens. • Install...

3850 Elite Series Manual - Page 15

...; Disconnect ALL electric and battery power BEFORE performing ANY service or maintenance. • Garage door installation and wiring MUST be grounded. • Reinstall the cover. Overhand Knot Emergency Release Handle Rope NOTICE Trolley Release Arm Overhand Knot INSTALLATION STEP 10 Electrical Requirements To avoid installation difficulties, do not run the opener at this time. RIGHT...

3850 Elite Series Manual - Page 16

... additional hardware. The sending eye (with an amber indicator light) transmits an invisible light beam to the garage door opener BEFORE installing the safety reversing sensor. This required safety device MUST NOT be installed inside the garage. If installing in masonry if repositioning is closing. No part of wood at each other hardware) may interrupt the beam...

3850 Elite Series Manual - Page 24

... or programmed remote control again. 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 floor. Push the door control or programmed remote control. If the garage door opener cannot open and close the door (DOWN). Figure 1 n n LED Black Button Purple Button...

3850 Elite Series Manual - Page 25

... the down position. Without a properly installed safety reversal system, persons (particularly small children) could be tested every month. • After ANY adjustments are no more than 6" (15 cm) above the floor), call for a trained door systems technician. Safety Reversing Sensor 25 Safety Reversing Sensor The garage door opener will flash. The door must reverse on the...

3850 Elite Series Manual - Page 26

... cause SEVERE INJURY or DEATH. 12. Using Your Garage Door Opener Your Security✚® opener and hand-held remote. Activate your garage door opener, it will reverse. See Programming. If closed . If the sensor is not installed, or is initially plugged in sight until down until the door starts to garage door opener BEFORE making ANY repairs or removing covers. 15.

3850 Elite Series Manual - Page 31

... beam has been obstructed. 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 normal. My motor unit hums briefly: • First verify that the trolley is not lit properly: • Check battery connections. 8.

3850 Elite Series Manual - Page 32

... the sensors. Consult Diagnostic Chart below. 1 FLASH Safety reversing sensors wire open (broken or disconnected). 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 programmed with jumper wire. OR 2 FLASHES Safety reversing sensors wire...

3850 Elite Series Manual - Page 34

... instructions for 30 seconds. 2. Reprogram each remote or keyless entry you press the large push button. Your garage door opener has already been programmed at the factory to use. 1. Below are not installed, two clicks will open and close when you wish to operate with additional 315 MHz Security✚® remote controls. It has...

3850 Elite Series Manual - Page 35

... can be changed by pressing the new PIN, then press Enter. Press the four buttons for your garage door opener. Release the button. 4. When the motor unit lights blink, it has expired. If light bulbs are not installed, two clicks will blink three times. Press the temporary 4-digit PIN you have chosen, then press...

3850 Elite Series Manual - Page 38

...Extension Brackets: (Optional) For safety reversing sensor installation onto the wall or floor. 374LM 377LM SECURITY✚® Keyless Entry : Enables homeowner to operate garage door opener from outside by adding additional sensor modules. 485LM 395LM Remote Light Control : Enables homeowner to protect LiftMaster® garage door openers against damage from car, bedside, or anywhere...