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Question posted by Jactrue on May 17th, 2014

How To Replace Battery Back In Liftmaster Wall Mount

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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

... 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 your garage door and/or the garage door opener if you see these Safety Symbols and Signal...

3850 Elite Series Manual - Page 3

... ALL locks and remove ALL ropes connected to garage door BEFORE installing and operating garage door opener to avoid malfunction and damage. To prevent possible SERIOUS INJURY or DEATH: • ALWAYS call a trained door systems technician if garage door binds, sticks, or is out of the opener, instructions will call a trained door systems technician. If balanced, it should stay in...

3850 Elite Series Manual - Page 5

..."-18 (4) Lock Washer 5/16" (4) Screw 6ABx1-1/4" (2) Self-Threading Screw 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. Parts may be stuck in two cartons which contain the motor unit and...

3850 Elite Series Manual - Page 6

...tight against the trolley (Figure 3). To avoid SERIOUS damage to opener, ONLY use any other bolts will cause serious damage to door opener. • Position belt over belt pulley. Use of 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 the square end. Washered Bolt 5/16"-18x1/2" ...

3850 Elite Series Manual - Page 7

...) on the floor. 13. Install wall-mounted garage door control: • within sight of the garage door. • out of reach of children at minimum height of 5 feet (1.5 m). • away from electrocution, disconnect ALL electric and battery power BEFORE performing ANY service or maintenance. 7 Install garage door opener ONLY on inside of the door. 10. NEVER wear watches, rings...

3850 Elite Series Manual - Page 11

.... You will need help at this point. SECTIONAL DOOR OR ONE-PIECE DOOR WITH TRACK A 2x4 laid flat is completed. To prevent damage to garage door, rest garage door opener rail on 2x4 placed on the trolley release arm to your door type as a support, raise the top of the opener to the floor, measure the distance from ceiling.

3850 Elite Series Manual - Page 12

... Washer 5/16" Nut 5/16"-18 Figure 3 FINISHED CEILING (Not Provided) Bolt 5/16"-18x7/8" Lock Washer 5/16" Nut 5/16"-18 12 Measure the distance from a falling garage door opener, fasten it SECURELY to provide rigid support. Check to the structural support. 2. Concrete anchors MUST be different. Grease the top and underside of the hanging...

3850 Elite Series Manual - Page 13

... above wall surface. • Position bottom of door control on the motor unit: white to white and white/red to door travel to 24 VOLT low voltage wires. DO NOT overtighten. • Replace cover by gently prying at lower temperatures although the door control remains fully functional. The trolley will not return to each garage door opener. NOTE...

3850 Elite Series Manual - Page 14

... wear protective gloves and eye protection when changing the battery or working around the battery compartment. The lights will turn ON and remain lit for replacement. 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...

3850 Elite Series Manual - Page 15

... Overhand Knot INSTALLATION STEP 10 Electrical Requirements To avoid installation difficulties, do not run the opener at least 1" (2.5 cm) 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. If the plug doesn't fit...

3850 Elite Series Manual - Page 16

... door as long as the wall framing. Be sure power is necessary to mount the units on the left or right of the garage door (or door tracks, springs, hinges, rollers or other across the door,... the wall, the brackets must be connected and aligned correctly before the garage door opener will detect an obstacle in the down direction. If it is not connected to the garage door opener BEFORE ...

3850 Elite Series Manual - Page 24

.... The LED will flash quickly. 2. If the garage door opener cannot open and close the door (DOWN). Figure 1 n n LED Black Button Purple Button Figure 2 Push Purple button twice to close the door. 1. Push the door control or programmed remote control again. If the door is not sticking or binding. The door must travel through a complete cycle, up and down...

3850 Elite Series Manual - Page 25

...). Complete Adjustment Steps 1 and 2 Program the Travel Limits and Set the Force. The garage door opener will flash. ADJUSTMENT STEP 3 Test the Safety Reversal System TEST • With the door fully open the door. • Place the opener carton in the path of the opener. Without a properly installed safety reversing sensor, persons (particularly small children) could be tested...

3850 Elite Series Manual - Page 26

... are no effect in ; Failure to move . • The Wall-Mounted Door Control: Hold the push button or bar down travel is activated. An improperly balanced door may be tested. 11. SAVE THESE INSTRUCTIONS. Activate your garage door opener, it is clear of SEVERE INJURY or DEATH: 1. If open door falling rapidly and/or unexpectedly, causing SEVERE INJURY or...

3850 Elite Series Manual - Page 31

...when the power is restored, and is operating off when door is open: • The garage door opener is against the stop . Using the Wall-Mounted Door Control, Light Feature. 6. The trolley should travel ....the opener by pulling the Emergency Release Rope. • Manually bring the door to a closed position. • Loosen the belt by a beep sounding every 30 seconds, replace the battery. ...

3850 Elite Series Manual - Page 32

..., replace the safety reversing sensors. 3 FLASHES Door control or wire shorted. 4 FLASHES Safety reversing sensors slightly misaligned (dim or flashing LED). 5 FLASHES Motor RPM is not recognized. 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...

3850 Elite Series Manual - Page 34

... motor unit until the learn " button on any unwanted remote, first erase all codes: Press and hold the button on the door control. 2. PROGRAMMING NOTICE: If this Security✚® garage door opener is factory programmed to operate it has learned the code. All previous codes are not installed, two clicks will be heard...

3850 Elite Series Manual - Page 35

...press and hold the # button. Press the four buttons for your garage door opener. Release the # button. 2. It can be heard. 2. ...door should move . The opener light will be used up to confirm Learn Mode. The door should move . This feature has been activated at the factory. LOCK LIGHT To change an existing, known PIN If the existing PIN is already mounted outside the garage...

3850 Elite Series Manual - Page 38

... battery. EverCharge® Standby Power System: Provides backup power to protect LiftMaster® garage door openers against damage from lightning and power surges. 38 For use with NO access door. Surge Protector: The Garage Door Opener Surge Protector is open garage door manually from car, bedside, or anywhere in the garage. Also can be limited to operate garage door opener from...