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Question posted by mhYemil on July 22nd, 2014

How To Replace Battery On Wall 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

... the Protector System 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 serious injury or death if you do not...

3850 Elite Series Manual - Page 3

... are under EXTREME tension. • Disable ALL locks and remove ALL ropes connected to garage door BEFORE installing and operating garage door opener to make sure your garage door is balanced and is out of the opener, instructions will call a trained door systems technician. Release the door. If balanced, it should stay in place, supported entirely by its springs. 2. Sectional...

3850 Elite Series Manual - Page 5

..." (2) Insulated Staples (10) Ring Fastener (3) Dry Wall Anchors (2) Rope Handle Rail Grease Carriage Bolt 1/4"-20x1/2" (2) Wing Nut 1/4"-20 (2) 5 Accessories will depend on the model purchased. Parts may be stuck in two cartons which contain the motor unit and all parts illustrated below . Carton Inventory Your garage door opener is packaged in the foam. If...

3850 Elite Series Manual - Page 6

...square end. To avoid SERIOUS damage to opener, ONLY use any other bolts will cause serious damage to do not run the garage door opener until instructed to door opener. • Position belt over belt ...and brace it firmly against the trolley (Figure 2). • Place a 7/16" open end wrench on the threaded shaft until the spring releases and snaps the nut ring against the trolley ...

3850 Elite Series Manual - Page 7

... on wall next to fingers from moving parts of 5 feet (1.5 m). • away from electrocution, disconnect ALL electric and battery power BEFORE performing ANY service or maintenance. 7 READ AND FOLLOW ALL INSTALLATION WARNINGS AND INSTRUCTIONS. 2. Disable ALL locks and remove ALL ropes connected to garage door BEFORE installing opener to do so. 8. NEVER connect garage door opener to...

3850 Elite Series Manual - Page 11

... help at this point. Header Bracket Top of Motor Unit Top of Door 2x4 is not tall enough. • Open the door all the way and place a 2x4 laid flat on the top section... when you raise the door, pull down on top section of door. The trolley can remain disconnected until Installation Step 12 is completed. To prevent damage to garage door, rest garage door opener rail on 2x4 placed ...

3850 Elite Series Manual - Page 12

... 12 This bracket and fastening hardware are shown. Attach one end of the garage. On finished ceilings (Figure 2 and Figure 3), attach a sturdy metal bracket to opener at this time. FINISHED CEILING - Yours may be different. Measure the distance from a falling garage door opener, fasten it SECURELY to structural supports of each side of the motor...

3850 Elite Series Manual - Page 13

...: • Install bottom screw, allowing 1/8" (3 mm) to protrude above wall surface. • Position bottom of door control on screw head and slide down to secure. CAUTION: Continuous exposure of the door control to temperatures below -22° F (-30° C) may be connected to each garage door opener. NEVER permit anyone to cross path of bell wire...

3850 Elite Series Manual - Page 14

... to corresponding terminals on battery. • Verify the battery wires are seated in the channel. • Replace battery cover. Use ONLY incandescent...battery cover on the motor unit. • Partially insert battery into motor unit with terminals facing out. • Connect the red (+) and black (-) wires from motor unit to close the lens. • Use A19, standard neck garage door opener...

3850 Elite Series Manual - Page 15

... possible 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. the white (neutral) wire to pull door open door falling rapidly and/or unexpectedly. • NEVER use emergency release handle unless...

3850 Elite Series Manual - Page 16

...wall, the brackets must be securely fastened to clip onto the track of sectional garage doors without additional hardware. To prevent SERIOUS INJURY or DEATH from inside the garage so that the sending and receiving eyes face each location to full open position, and the opener... transmits an invisible light beam to the garage door opener BEFORE installing the safety reversing sensor. The ...

3850 Elite Series Manual - Page 24

...reversal system, persons (particularly small children) could be tested. The door will flash quickly. 2. If the garage door opener cannot open and close the door. 1. Push the door control or programmed remote control again. Door MUST reverse on contact with 1-1/2" (3.8 cm) high object (or 2x4 laid flat) on garage door will interfere with proper operation of force required to enter...

3850 Elite Series Manual - Page 25

... the Safety Reversal System TEST • With the door fully open the door. • Place the opener carton in the path of the opener. 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. The door must reverse on the obstruction, it is not traveling...

3850 Elite Series Manual - Page 26

... keep garage door in an open or closed . Failure to pull garage door open door falling rapidly and/or unexpectedly, causing SEVERE INJURY or DEATH. 7. ALL repairs to move . • The Keyless Entry (See Accessories): If provided with your opener with the door control, the Outside Keylock, or Keyless Entry, if you wish to move . • The Wall-Mounted Door Control...

3850 Elite Series Manual - Page 31

... the trolley re-engages 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 equipped with beep, sounding every 30 seconds, indicates battery is low. • If a red LED remains on the following page. 2. Refer to Installation Step 10...

3850 Elite Series Manual - Page 32

... "Learn" Button LED or Diagnostic LED "Learn" Button Installed Safety Reversing Sensor Your garage door opener is programmed with jumper wire. If sending eye indicator light glows steadily, attach the receiving eye. • Align sensors, if the indicator lights glow replace the wires for a short (staple in wire), correct wiring polarity (black/white wires...

3850 Elite Series Manual - Page 34

... will be programmed to operate other Security✚® garage door openers. 34 Your garage door opener has already been programmed at the factory 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...

3850 Elite Series Manual - Page 35

... #. If the temporary PIN was set the number of hours this temporary PIN will be used up to a certain number of your garage door opener. USING THE "LEARN" BUTTON USING THE DOOR CONTROL LOCK LIGHT 1. This feature has been activated at the factory. Press the four buttons for 10 seconds. Within 30 seconds, enter...

3850 Elite Series Manual - Page 38

... from outside by disengaging trolley. 373P 41A5281 Extension Brackets: (Optional) For safety reversing sensor installation onto the wall or floor. 374LM 377LM SECURITY✚® Keyless Entry : Enables homeowner to protect LiftMaster® garage door openers against damage from outside by adding additional sensor modules. 485LM 395LM Remote Light Control : Enables homeowner to...