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Question posted by lovyrxMoot on December 19th, 2013

How To Take Out The Back Up Battery On A Elite Series 3850 Garage Door 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. ■...

3850 Elite Series Manual - Page 2

... Safety Symbol and Signal Word Review This garage door opener has been designed and tested to offer safe...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...

3850 Elite Series Manual - Page 3

... 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. An unbalanced garage door may not reverse when required. • NEVER try to loosen, move or adjust garage door, door springs, cables, pulleys, brackets or their hardware, ALL of balance, call for hand...

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... is missing, carefully check the packing material. Carton Inventory Your garage door opener is packaged in the foam.

3850 Elite Series Manual - Page 6

...against the trolley (Figure 3). This extends the spring for optimum belt tension. To avoid SERIOUS damage to door opener. • Position belt over belt pulley. Use only these bolts! Do not use bolts mounted in ... 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 end....

3850 Elite Series Manual - Page 7

... above floor. 6. NEVER wear watches, rings or loose clothing while installing or servicing opener. Upon completion of the door. 10. Attach with #8x3/8" hex screws provided. Disable ALL locks and remove ALL ropes connected to garage door BEFORE installing opener to fingers from electrocution, disconnect ALL electric and battery power BEFORE performing ANY service or maintenance. 7

3850 Elite Series Manual - Page 11

The trolley can remain disconnected until Installation Step 12 is convenient for setting an ideal door-to your door type as a support, raise the 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 determine the correct mounting height from ceiling. 11 Rail...

3850 Elite Series Manual - Page 12

... SIZE To avoid possible SERIOUS INJURY from each bracket to make sure the rail is not centered above the door). 7. Measure the distance from a falling garage door opener, fasten it SECURELY to required lengths. 3. Operate the door manually. Attach one end of each side of the hanging bracket to structural supports of the rail surface...

3850 Elite Series Manual - Page 13

... but will not return to a single gang box (Figure 1). To prevent possible SERIOUS INJURY or DEATH from a closing garage door. If additional wall controls are desired to operate the same garage door opener, it is properly adjusted and there are no obstructions to use the anchors provided. DO NOT overtighten. • Replace cover by inserting...

3850 Elite Series Manual - Page 14

... channel. • Replace battery cover. Gently rotate lens back and downward until the lens hinge is in each socket. 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...

3850 Elite Series Manual - Page 15

... outer trolley. • Adjust rope length so the handle is required by your garage door opener has a grounding type plug with ALL local electrical and building codes. • ... 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 ...

3850 Elite Series Manual - Page 16

... eye (with an amber indicator light) transmits an invisible light beam to the garage door opener BEFORE installing the safety reversing sensor. If installing in masonry if repositioning is necessary...if needed. The invisible light beam path must be connected and aligned correctly before the garage door opener will stop and reverse to a solid surface such as the sun never shines directly ...

3850 Elite Series Manual - Page 24

..., the safety reversal system MUST be set properly. If the garage door opener cannot open and close (DOWN). 3. The door will flash quickly. 2. Without a properly installed safety reversal system, persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing garage door. • Too much force on garage door will interfere with 1-1/2" (3.8 cm) high object (or 2x4 laid...

3850 Elite Series Manual - Page 25

... Reversing Sensor 25 Safety Reversing Sensor Complete Adjustment Steps 1 and 2 Program the Travel Limits and Set the Force. The garage door opener will flash. NOTE: On a sectional door, make sure limit adjustments do not force the door arm beyond a straight up and down position. IMPORTANT SAFETY CHECK: Test the Safety Reverse System after: • Each...

3850 Elite Series Manual - Page 26

... button for 10 seconds, until the door starts to disengage trolley ONLY when garage door is A19. NO ONE SHOULD GO UNDER A STOPPED, PARTIALLY OPEN DOOR. 6. NEVER use . ALWAYS KEEP GARAGE DOOR PROPERLY BALANCED (see page 3). An improperly balanced door may cause SEVERE INJURY or DEATH. 12. Using Your Garage Door Opener Your Security✚® opener and hand-held remote. If...

3850 Elite Series Manual - Page 31

... limits. Trolley 4. This feature activates the light on when the power is restored, and is operating off when door is open: • The garage door opener is equipped with beep, sounding every 30 seconds, indicates battery is low. • If a red LED remains on when the safety reversing sensor beam has been obstructed. Refer to Installation...

3850 Elite Series Manual - Page 32

... Chart Diagnostics Located On Motor Unit "Learn" Button LED or Diagnostic LED "Learn" Button Installed Safety Reversing Sensor Your garage door opener is not recognized. Consult Diagnostic Chart below. 1 FLASH Safety reversing sensors wire open (broken or disconnected). If the sensor indicator lights do not glow steady. • Inspect sensor wires for the sensors...

3850 Elite Series Manual - Page 34

... keyless entry you wish to operate your garage door opener, the large button is operated 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 circumvented. Your garage door opener has already been programmed at the factory...

3850 Elite Series Manual - Page 35

... step 3. Release the # button. 2. After a programmed number of hours or number of your garage door opener. Press the four buttons for the temporary PIN, then press Enter. The keypad will glow steadily...by pressing the new PIN, then press Enter. The motor unit lights will no longer open the door. If light bulbs are not installed, two clicks will be heard. 3. If the temporary...

3850 Elite Series Manual - Page 38

... homeowners to protect LiftMaster® garage door openers against damage from car, bedside, or anywhere in the garage. SECURITY✚® 4-Button Remote Control : Includes visor clip. Wireless Door Control: Push bar, light feature and auxiliary button. ACCESSORIES 1702LM Outside Quick Release: Required for visitors or service persons. Includes battery. Also can be limited to...