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LiftMaster 3850 Support Question

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Question posted by Juvis on February 6th, 2014

How To Change Liftmastermodel 3850 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. ■...
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 opener 30 Having a problem? (Troubleshooting 31 Diagnostic chart 32 Smart...
3850 Elite Series Manual - Page 3

..., sticks, or is out 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. 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

... is also listed below . Carton Inventory Your garage door opener is packaged in the foam. 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 3850-267 (1) ONLY Motor Unit with Light Lenses...
3850 Elite Series Manual - Page 6

... the Rail to the Motor Unit To avoid installation difficulties, do not run the garage door opener until instructed to door opener. • Position belt over belt pulley. Washered Bolt 5/16"-18x1/2" Rail Hole...releases and snaps the nut ring against the trolley (Figure 2). • Place a 7/16" open end wrench on the square end. Rotate about 1/4 turn until it firmly against the trolley (...
3850 Elite Series Manual - Page 7

... with the three holes in garage door or opener mechanisms. 9. READ AND FOLLOW ALL INSTALLATION WARNINGS AND INSTRUCTIONS. 2. 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...
3850 Elite Series Manual - Page 11

... ceiling. 11 You will need help at this point. Slide the outer trolley toward the motor unit. Header Bracket Top of Motor Unit Top of 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 disconnect inner and outer sections. SECTIONAL...
3850 Elite Series Manual - Page 12

... brackets should be angled (Figure 1) to opener at this time. Measure the distance from a falling garage door opener, fasten it SECURELY to structural supports of the rail surface where the trolley slides with 5/16"-18x1-7/8" lag screws. 5. Check to the structural support. 2. Remove the 2x4. If the door hits the rail, raise the header bracket...
3850 Elite Series Manual - Page 13

... fully functional. SPECIAL NOTE: Only one end of bell wire and connect to the two screw terminals on screw head and slide down to each garage door opener. Strip 7/16" (11 mm) of insulation from one 398LM can be seen clearly, is slower at a minimum height of 5 feet (1.5 m) where small children cannot reach...
3850 Elite Series Manual - Page 14

...) Standard Light Bulb Lens Hinge 14 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. Use ONLY incandescent. ALWAYS wear protective gloves and eye protection when changing the battery or working around the...
3850 Elite Series Manual - Page 15

...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...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 in an open door falling ...
3850 Elite Series Manual - Page 16

...® The safety reversing sensor must be connected and aligned correctly before the garage door opener will move in masonry construction, add a piece of the garage door (or door tracks, springs, hinges, rollers or other across the door, no more than 6" (15 cm) above garage floor. IMPORTANT INFORMATION ABOUT THE SAFETY REVERSING SENSOR When properly connected and aligned...
3850 Elite Series Manual - Page 24

.... • NEVER use force adjustments to compensate for the force to enter unit into the Force Adjustment Mode. The door will stop flashing when the force has been programmed. If the garage door opener cannot open (UP). 4. Push the purple button twice to ensure that it is balanced properly and is not stopping exactly where...
3850 Elite Series Manual - Page 25

...), remove the obstruction and run the opener through 3 or 4 complete travel cycles to test adjustment. • If the unit continues to open , place a 1-1/2" (3.8 cm) board (or a 2x4 laid flat) on striking the obstruction. The garage door opener will flash. The door must reverse on the floor, centered under the garage door. • Operate the door in the down direction.
3850 Elite Series Manual - Page 26

... rapidly and/or unexpectedly, causing SEVERE INJURY or DEATH. 7. If opening , the door will open garage door. If the door has been stopped in an open , the door will operate with each use . If the sensor is not installed, or is clear of which changes with up to pull garage door open , the door will reverse. 3. However, you can be programmed before use...
3850 Elite Series Manual - Page 31

... 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 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 not lit properly: • Check battery connections. 8.
3850 Elite Series Manual - Page 32

...'t activate from the door control. • Inspect door control/wires for the sensors. Momentarily short across red and white terminals with self-diagnostic capabilities. 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...
3850 Elite Series Manual - Page 34

... the non-rolling code remote control to operate other Security✚® garage door openers. 34 Your garage door opener has already been programmed at the factory to operate with additional 315 MHz...* that you wish to use. 1. PROGRAMMING NOTICE: If this Security✚® garage door opener is factory programmed to operate it has learned the code. To Erase All Codes From...
3850 Elite Series Manual - Page 35

... PIN was set to a certain number of openings, remember that the test has used to 0 in step 3. The keypad will work , press the number of your garage door opener. The learn " button on the keypad. ...digit personal identification number (PIN) of times (up to confirm Learn Mode. It can be changed by visitors or service people with a temporary 4-digit PIN. Press and release the "learn ...
3850 Elite Series Manual - Page 38

...adding additional sensor modules. 485LM 395LM Remote Light Control : Enables homeowner to operate garage door opener from car, bedside, or anywhere in the garage. Enables homeowner to the garage door opener. Includes battery. ACCESSORIES 1702LM Outside Quick Release: Required for a garage with model 3850 only. Tells you if your home! SECURITY✚® 3-Button Mini Remote...

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