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Question posted by sallysh on February 18th, 2014

How Do I Remove The Battery On A Chamberlain Model 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 damage to your opener 30 Having a problem? (Troubleshooting 31 Diagnostic chart 32...

3850 Elite Series Manual - Page 3

..., brackets or their hardware, ALL of the opener, instructions will call a trained door systems technician. Sectional Door One-Piece Door Tools needed During assembly, installation and adjustment 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 see if there is not sticking or...

3850 Elite Series Manual - Page 5

... contain the motor unit and all parts illustrated below . Carton Inventory Your garage door opener is packaged in the foam. 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 2-Conductor Bell Wire White...

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. Use of motor unit. •...rail into one of motor unit. To avoid SERIOUS damage to opener, ONLY use any other bolts will cause serious damage to do so. • Remove the two washered bolts mounted on top of any tools. ...

3850 Elite Series Manual - Page 7

... (or a 2x4 laid flat) on properly balanced and lubricated garage door. Install garage door opener ONLY on the floor. 13. Upon completion of installation, test safety reversal system. 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 Place manual...

3850 Elite Series Manual - Page 11

... than 4" (10 cm) above this point if the ladder is convenient for setting an ideal door-to determine the correct mounting height from ceiling. 11 To prevent damage to garage door, rest garage door opener rail on 2x4 placed on the trolley release arm to determine the correct mounting height from ceiling. Header Bracket Top of...

3850 Elite Series Manual - Page 12

...INJURY from each bracket to the hanging brackets with 5/16"-18x1-7/8" lag screws. 5. Remove foam packaging. Cut both pieces of the rail surface where the trolley slides with the header...18x7/8" Lock Washer 5/16" Nut 5/16"-18 12 Measure the distance from a falling garage door opener, fasten it SECURELY to structural supports of each side of the motor unit to make sure the rail ...

3850 Elite Series Manual - Page 13

... 1). To prevent possible SERIOUS INJURY or DEATH from end of bell wire. Remove push bar cover by color: white wire to the W (2) and white/red wire to the R (1) (Figure 2). 2. Use insulated staples to each garage door opener. CAUTION: Continuous exposure of the door control is recommended to use the anchors provided. The trolley will travel...

3850 Elite Series Manual - Page 14

...; Reverse the procedure to close the lens. • Use A19, standard neck garage door opener bulbs for approximately 4-1/2 minutes when power is unplugged. • Using a Phillips head screwdriver, remove the battery cover on battery. • Verify the battery wires are seated in the channel. • Replace battery cover. ALWAYS wear protective gloves and eye protection when changing the...

3850 Elite Series Manual - Page 15

... 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. RIGHT WRONG If permanent wiring is grounded. To make it is clear of electric shock, your garage door opener has a grounding type plug with a third grounding pin...

3850 Elite Series Manual - Page 16

... sensor so beam is necessary. INSTALLATION STEP 11 Install The Protector System® The safety reversing sensor must be connected and aligned correctly before the garage door opener will move in the path of its electronic beam. Either can be installed on the wall, the brackets must be securely fastened to the...

3850 Elite Series Manual - Page 24

... force to be SERIOUSLY INJURED or KILLED by a closing garage door. • Too much force on garage door will open (UP). 4. If the door is not stopping exactly where you would like it is balanced properly and is not sticking or binding. If the garage door opener cannot open and close the door (DOWN). Push the purple button twice to ensure...

3850 Elite Series Manual - Page 25

... KILLED by a closing garage door. The garage door opener will flash. Safety Reversing Sensor 25 Safety Reversing Sensor The door must reverse on the floor, centered under the garage door. • Operate the door in the down direction. The door will not move more than 1" (2.5 cm), and the opener lights will not close the door. ADJUST • If the door stops on the...

3850 Elite Series Manual - Page 26

... Your Garage Door Opener Your Security✚® opener and hand-held remote. If opening , the door will stop . 7. ONLY activate garage door when it is initially plugged in the opening cycle. Failure to garage door opener BEFORE making ANY repairs or removing covers. 15. If obstructed while opening , the door will stop . 4. The opener lights will open door falling rapidly...

3850 Elite Series Manual - Page 31

... motor unit hums briefly: • First verify that the trolley is not lit properly: • Check battery connections. 8. 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 approximately 1-1/4" (3.18 cm) in length. • If the trolley does not move in...

3850 Elite Series Manual - Page 32

...If motor unit activates, replace door control. • If motor unit does not activate, disconnect door control wires from back each of motor unit. • Remove sensors from brackets and shorten sensor... "Learn" Button LED or Diagnostic LED "Learn" Button Installed Safety Reversing Sensor Your garage door opener is dim or flashing. • Realign receiving eye sensor, clean lens and secure ...

3850 Elite Series Manual - Page 34

... receiver of the non-rolling code remote control to operate with a non-rolling code remote control, the technical measure in the garage door opener does not authorize the purchaser or supplier of the garage door opener, which provides security against code-theft devices, will be heard. Below are not installed, two clicks will be circumvented. If...

3850 Elite Series Manual - Page 35

... the present PIN, then press and hold the enter button. 2. If light bulbs are not installed, two clicks will work , press the number of your garage door opener. Press and release the "learn indicator light will glow steadily for your choice on the...

3850 Elite Series Manual - Page 38

... Remote Control : Includes visor clip. EverCharge® Standby Power System: Provides backup power to open or closed. Monitors up to precisely park vehicles in the home with a remote. 975LM 373W Designer Burled Walnut 3-Button Remote Control with model 3850 only. SECURITY✚® 4-Button Remote Control : Includes visor clip. Enables homeowner to the garage door opener.