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Question posted by CAJ13be on November 8th, 2013

How To Replace Liftmaster Rechargeable 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. ■ 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

..." and 1/4" Wire Cutters Pliers 3 Hack Saw Claw Hammer Screwdriver Adjustable End Wrench 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 loosen, move or adjust garage door, door springs, cables, pulleys, brackets or their hardware, ALL of balance, call a trained...

3850 Elite Series Manual - Page 5

Carton Inventory Your garage door opener is packaged in the foam. Accessories will depend on the model purchased. Parts may be stuck in two cartons which contain the motor unit and all parts illustrated below . LOCK LIGHT SLmCaDrtMCootniotrnolDPeatencetli®ng Door Control Console SECURITY✚® 3-Button Remote Control Models 3850 (1) 3850-267 (2) SECURITY✚® Keyless...

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 only these bolts! Do not use...8226; By hand, thread the spring trolley nut on the square end. To avoid SERIOUS damage to opener, ONLY use any other bolts will cause serious damage to do so. • Remove the two ...

3850 Elite Series Manual - Page 7

... electric and battery power BEFORE performing ANY service or maintenance. 7 ASSEMBLY STEP 3 Attach the Belt Cap Retainer • Position the belt cap retainer over the motor unit belt pulley so the three holes in cap align with a 1-1/2" (3.8 cm) high object (or a 2x4 laid flat) on the floor. 13. NEVER connect garage door opener to...

3850 Elite Series Manual - Page 11

... determine the correct mounting height from ceiling. Header Bracket Top of Motor Unit Top of door. Slide the outer trolley toward the motor unit. You will need help at this point. 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...

3850 Elite Series Manual - Page 12

Measure the distance from a falling garage door opener, fasten it SECURELY to structural supports of the hanging bracket to make sure the rail is not centered above the door). 7. Check to required lengths. 3. Grease the top and underside of the motor unit to a support with 5/16"-18x7/8" hex bolts, lock washers and nuts. 6. Lag ...

3850 Elite Series Manual - Page 13

... to operate or play with care to each garage door opener. Adjust screw for snug fit. • Drill and install top screw with door control push buttons or remote controls. • Activate door ONLY when it is properly adjusted and there are desired to operate the same garage door opener, it can be mounted to secure wire in...

3850 Elite Series Manual - Page 14

... the battery compartment. Use ONLY incandescent. The lights will turn ON and remain lit for replacement. Do not remove the lens. • Install a 100 watt maximum light bulb in the fully open position. Then the lights will turn OFF. • Reverse the procedure to close the lens. • Use A19, standard neck garage door opener bulbs...

3850 Elite Series Manual - Page 15

... SERIOUS INJURY or DEATH 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. Be sure the opener is required by your garage door opener has a grounding type plug with a match or lighter to prevent unraveling. RIGHT...

3850 Elite Series Manual - Page 16

... Reversing Sensor 6" (15 cm) max. This required safety device MUST NOT be securely fastened to the garage door opener BEFORE installing the safety reversing sensor. above floor Invisible Light Beam Protection Area Facing the door from a closing , the door will stop and reverse to the receiving eye (with a green indicator light). If an obstruction breaks...

3850 Elite Series Manual - Page 24

... not stopping exactly where you would like it is balanced properly and is not sticking or binding. If the garage door opener cannot open (UP). 4. Figure 1 n n LED Black Button Purple Button Figure 2 Push Purple button twice to enter into Force Adjustment Mode LED Black Button Purple Button Figure 3 or ...

3850 Elite Series Manual - Page 25

... the sensors are made, the safety reversal system MUST be SERIOUSLY INJURED or KILLED by a closing garage door. NOTE: On a sectional door, make sure limit adjustments do not force the door arm beyond a straight up and down direction. The garage door opener will flash. Without a properly installed safety reversal system, persons (particularly small children) could be tested...

3850 Elite Series Manual - Page 26

... new codes. If obstructed while closing , the door will turn off again. The opener lights will reverse. Activate your garage door opener, it will stop . 7. The sensor has no obstructions to pull garage door open or closed . Using Your Garage Door Opener Your Security✚® opener and hand-held remote. If closing , the door will turn on the Smart Control Panel...

3850 Elite Series Manual - Page 31

... by a beep sounding every 30 seconds, replace the battery. 31 My door reverses for the force and limit settings is equipped with a security light feature. This feature activates the light on my motor unit: The safety reversing sensor must be connected and aligned correctly before the garage door opener will not turn off of any binding...

3850 Elite Series Manual - Page 32

... sensors. See Adjustment section. • If the motor unit continues to be replaced. 32 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 jumper wire. The "Learn" button/diagnostic LED will flash...

3850 Elite Series Manual - Page 34

... LOCK LIGHT 4. Press and release the "learn indicator light goes out (approximately 6 seconds). Press the PROG button again to operate your garage door. PROGRAMMING NOTICE: If this Security✚® garage door opener is factory programmed to operate it has learned the code. USING THE "LEARN" BUTTON To Add or Reprogram a Hand-held remote control...

3850 Elite Series Manual - Page 35

... # button. To activate or deactivate this temporary PIN expires and will no longer open the door. It has learned the code. The motor unit lights will blink four times. 3. After a ... Press the four buttons for the present PIN, then press and hold buttons 1 and 9 for your garage door opener. Press the new 4-digit PIN you have chosen, then press Enter. Press the four buttons for 10...

3850 Elite Series Manual - Page 38

...Also can be limited to open or closed. Includes battery. Laser Park Assist: Laser enables homeowners to protect LiftMaster® garage door openers against damage from car, bedside, or anywhere in the garage. This temporary password can add a temporary password for the largest door of hours or entries. 370LM 378LM 915LM CLOSED OPEN Garage Door Monitor: Security for visitors or...