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LiftMaster 3850 Support Question

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Question posted by LIengph on June 1st, 2014

How Change Liftmaster Backup Battery For Liftmaster 3850 Opener

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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...

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

... balanced and 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. Sectional Door One-Piece Door Tools needed During assembly, installation and adjustment of which are under EXTREME tension. • Disable ALL...

3850 Elite Series Manual - Page 4

... Horizontal and vertical reinforcement is required. See page 12. See page 19 for lightweight garage doors (fiberglass, steel, aluminum, door with the installation of your opener. Survey your garage area to see if any of your garage door. Safety Reversing Sensor Additional materials may find it helpful to refer back to this page and the accompanying illustrations...

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.... Carton Inventory Your garage door opener is also listed below . If anything is missing, carefully check the packing material.

3850 Elite Series Manual - Page 6

... 1). To avoid SERIOUS damage to do not run the garage door opener until instructed to opener, ONLY use any other bolts will cause serious damage to door opener. • Position belt over belt pulley. This extends... releases and snaps the nut ring against the trolley (Figure 2). • Place a 7/16" open end wrench on top of motor unit. • Align rail and styrofoam over the motor unit ...

3850 Elite Series Manual - Page 7

... be caught in garage door or opener mechanisms. 9. 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. Upon completion of garage door. 12. ALL repairs to garage door control. 11. NEVER connect garage door opener to power source...

3850 Elite Series Manual - Page 8

An unbalanced garage door might not reverse when required. Extend the line onto the header wall above the high point for the top edge of the door. Open your door to the highest point of inches exceeds the height available in the way; Draw an intersecting horizontal line on page 9. 3. NOTE: If the total number ...

3850 Elite Series Manual - Page 10

... is in the way you'll need help. Header Wall Header Bracket Belt Pulley Bracket Garage Door INSTALLATION STEP 3 Attach the Rail to the Header Bracket • Position the opener on a temporary support to allow the rail to clear the spring. • Position the rail bracket against the header bracket. • Align the...

3850 Elite Series Manual - Page 11

... height from the floor to the top of the door. • Using a stepladder as illustrated. Rail Door 2x4 is convenient for setting an ideal door-to garage door, rest garage door opener rail on 2x4 placed on the trolley release arm to this height. • The top of the door should be level with the top of the motor...

3850 Elite Series Manual - Page 14

... procedure to close the lens. • Use A19, standard neck garage door opener bulbs for approximately 4-1/2 minutes when power is connected. 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...

3850 Elite Series Manual - Page 15

...sure the opener is required by your garage door opener has a grounding type plug with ALL local electrical and building codes. • NEVER use an extension cord, 2-wire adapter, or change plug ... electrocution or fire: • Disconnect ALL electric and battery power BEFORE performing ANY service or maintenance. • Garage door installation and wiring MUST be grounded. • Reinstall...

3850 Elite Series Manual - Page 26

... must be tested. 11. If obstructed while closing , the door will blink for five seconds. 6. ALWAYS KEEP GARAGE DOOR PROPERLY BALANCED (see page 3). If obstructed while opening, the door will stop . 7. WARNING OPERATION IMPORTANT SAFETY INSTRUCTIONS WARNING To reduce the risk of which changes with the opener lights on, then press and hold the light button for...

3850 Elite Series Manual - Page 28

...opening the door. 1. After the opener lights flash, release all buttons. The 3V2450 lithium battery for the opener and LED lights (marked "LED and Opener Battery") should last 1-2 years. Tested to operate the opener...and hold the Lock button on for changing the code setting or replacing the battery. LED and Opener Batteries Proximity Battery Spring Contact CAUTION: Do not bend ...

3850 Elite Series Manual - Page 29

... with beep indicates the 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 power cord back into the electrical outlet. • Verify that the battery is fully charged. Check with the motor unit...

3850 Elite Series Manual - Page 31

...: • 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 equipped with beep, sounding every 30 seconds, indicates battery is accompanied by adjusting the outer nut 4 to troubleshooting. 1. If it does, deactivate the Lock Mode following...

3850 Elite Series Manual - Page 33

... AND ESPAÑOL Message MOTION SENSING ON MOTION SENSING OFF Message BATTERY BACKUP ENABLED Message BATTERY BACKUP ENABLED Message BATTERY LOW BATTERY BACKUP ENABLED Message BATTERY BAD REPLACE BATTERY NOW SEE OWNER'S MANUAL Message POWER RESTORED BATTERY CHARGING Meaning: This message will disable the opener from door control do not light, replace the safety reversing sensors. This feature...

3850 Elite Series Manual - Page 35

...or Change a Keyless Entry PIN NOTE: Your new Keyless Entry must be used up one button close is known, it may authorize access by pressing the four buttons for your garage door opener. To... set the number of your choice on the door control. 2. Press the four buttons for the temporary PIN,...

3850 Elite Series Manual - Page 38

...; 3-Button Remote Control : Includes visor clip. Also can be limited to protect LiftMaster® garage door openers against damage from lightning and power surges. 38 Includes battery. ACCESSORIES 1702LM Outside Quick Release: Required for a garage with model 3850 only. Tells you if your garage door is designed to a programmable number of your home! SECURITY✚® 4-Button...

3850 Elite Series Manual - Page 40

...COVER ANY PROBLEMS WITH, OR RELATING TO, THE GARAGE DOOR OR GARAGE DOOR HARDWARE, INCLUDING BUT NOT LIMITED TO THE DOOR SPRINGS, DOOR ROLLERS, DOOR ALIGNMENT OR HINGES. IN NO EVENT SHALL SELLER'S... NUMBER: 1-800-528-9131 LIFTMASTER FIVE YEAR LIMITED WARRANTY LIFETIME MOTOR AND BELT LIMITED WARRANTY ONE YEAR LIMITED WARRANTY FOR EVERCHARGE® STANDBY POWER BATTERY The Chamberlain Group, Inc. ...