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LiftMaster 3850 Support Question

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Question posted by devjat on February 28th, 2014

How Do I Turn Off Back Up Battery On Liftmaster

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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

..., sticks, or is out of balance, call for hand tools as shown. 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. Release the door. Sectional Door One-Piece Door Tools needed During assembly, installation and adjustment of the...
3850 Elite Series Manual - Page 5

... motor unit and all parts illustrated below . Carton Inventory Your garage door opener is packaged in the foam. If anything is also listed below . Accessories will depend on the model purchased. LOCK LIGHT SLmCaDrtMCootniotrnolDPeatencetli®ng Door Control Console SECURITY✚® 3-Button Remote Control Models 3850 (1) 3850-267 (2) SECURITY✚® Keyless Entry Model...
3850 Elite Series Manual - Page 6

...STEP 1 Attach the Rail to the 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 ... the trolley (Figure 2). • Place a 7/16" open end wrench on top of motor unit. Rotate about 1/4 turn until the spring releases and snaps the nut ring against the trolley (Figure 3).
3850 Elite Series Manual - Page 7

... IMPORTANT INSTALLATION INSTRUCTIONS WARNING To reduce the risk of garage door. 12. Upon completion of the door. 10. Install garage door opener 7 feet (2.1 m) or more above floor. 7. NEVER connect garage door opener to power source until instructed to fingers from electrocution, disconnect ALL electric and battery power BEFORE performing ANY service or maintenance. 7 ASSEMBLY STEP...
3850 Elite Series Manual - Page 11

... motor unit. Header Bracket Top of Motor Unit Top of the motor unit. 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 door. INSTALLATION STEP 4 Position the Opener Follow instructions which apply to disconnect inner and outer sections.
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 the hanging brackets with the header bracket if the bracket is centered over the...
3850 Elite Series Manual - Page 13

... is recommended to operate the same garage door opener, it is between -4° F (-20° C) and 122° F (50° C). If additional wall controls are no obstructions to door travel to the full open circuit. 4. Strip 7/16" (11 mm) of insulation from one 398LM can be mounted to each garage door opener. Strip 7/16" (11 mm) of insulation...
3850 Elite Series Manual - Page 14

Use ONLY incandescent. 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 connected. NOTE: Use only standard light bulbs. To prevent possible OVERHEATING of lens. Channel Battery Battery Cover INSTALLATION STEP 8 Install the Lights • Press the...
3850 Elite Series Manual - Page 15

...an open or closed. 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 ...rope to the green ground screw. RIGHT WRONG If permanent wiring is required by your garage door opener has a grounding type plug with a match or lighter to the screw on the ...
3850 Elite Series Manual - Page 16

... must be securely fastened to the receiving eye (with a green indicator light). above floor 16 The units must be connected and aligned correctly before the garage door opener will detect an obstacle in the down direction. IMPORTANT INFORMATION ABOUT THE SAFETY REVERSING SENSOR When properly connected and aligned, the sensor will move in...
3850 Elite Series Manual - Page 24

... reversal system, persons (particularly small children) could be set properly. The LED will interfere with proper operation of force required to close the door (DOWN). If the garage door opener cannot open (UP). 4. ADJUSTMENT STEP 2 Set the Force The force setting measures the amount of safety reversal system. • NEVER use force adjustments to ensure...
3850 Elite Series Manual - Page 25

... the fact that the sensor is misaligned or obstructed). The garage door opener will flash. ADJUST • If the door stops on the obstruction, it is obstructed (and the sensors are made, the safety reversal system MUST be SERIOUSLY INJURED or KILLED by a closing garage door. • Safety reversal system MUST be tested every month. •...
3850 Elite Series Manual - Page 26

... reduce the risk of children. NEVER use . To restore this feature may cause SEVERE INJURY or DEATH. 12. The sensor has no obstructions to pull garage door open garage door. The opener lights will also turn on , then press and hold the light button for five seconds. 6. Security✚® light feature: Lights will...
3850 Elite Series Manual - Page 31

... 30 seconds, replace the battery. 31 If the trolley re-engages with a security light feature. My lights will not turn off of any binding problems. • Refer to Programming. • If remote will not activate the door: • Verify your door, check diagnostic LED for balance or any obstructions. My garage door opener beeps: • A solid LED...
3850 Elite Series Manual - Page 32

... Diagnostic Chart below. 1 FLASH Safety reversing sensors wire open (broken or disconnected). If motor unit activates, replace door control. • If motor unit does not activate, disconnect door control wires from back each of the Indicator lights on...Button LED or Diagnostic LED "Learn" Button Installed Safety Reversing Sensor Your garage door opener is programmed with jumper wire.
3850 Elite Series Manual - Page 34

... 1. If light bulbs are now erased. PROGRAMMING NOTICE: If this Security✚® garage door opener is factory programmed to operate it has learned the code. Additional buttons on any unwanted ... Reprogram each remote or keyless entry you wish to operate other Security✚® garage door openers. 34 The owner of the copyright in the receiver of the non-rolling code ...
3850 Elite Series Manual - Page 35

...Press the PROG button on motor unit. The opener light will work , press the number of your garage door opener. Release the # button. 2. The door should move . To set a temporary PIN...blink, it may authorize access by one button close is already mounted outside the garage. 1. The opener light will be heard. 3. If light bulbs are not installed, two clicks ...
3850 Elite Series Manual - Page 38

...persons. SECURITY✚® 4-Button Remote Control : Includes visor clip. Includes battery. EverCharge® Standby Power System: Provides backup power to a programmable number of hours or entries. 370LM 378LM 915LM CLOSED OPEN Garage Door Monitor: Security for a garage with NO access door. Monitors up to turn on a specially designed keyboard. For use with SECURITY✚®...

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