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Question posted by cjmanpiop on May 25th, 2014

How To Change Battery In Wall Control Garage Door Opener Model 3850 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 WILL...

3850 Elite Series Manual - Page 2

... 25 Test 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 comply...

3850 Elite Series Manual - Page 3

...Tools needed During assembly, installation and adjustment of balance, call a trained door systems technician. 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...

3850 Elite Series Manual - Page 5

...®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 & White/Red Belt Pulley Bracket Trolley Optional EBvearttCehryarge® Stan(PdbacykPeodwSeerpSaryastteelym) (battery) Belt RReemmootteeCCoonnttrrooll...

3850 Elite Series Manual - Page 6

... wrench on the square end. ASSEMBLY STEP 1 Attach 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. Tighten bolts securely. Do not use bolts mounted in top of the nut ring slots and brace it is...

3850 Elite Series Manual - Page 7

... connect garage door opener to power source until instructed to the installation section. NEVER wear watches, rings or loose clothing while installing or servicing opener. 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...

3850 Elite Series Manual - Page 11

... be level with the top of the motor unit. SECTIONAL DOOR OR ONE-PIECE DOOR WITH TRACK A 2x4 laid flat is completed. To prevent damage to determine the correct mounting height from ceiling. 11 Rail Door 2x4 is used to garage door, rest garage door opener rail on 2x4 placed on the trolley release arm to disconnect inner...

3850 Elite Series Manual - Page 12

... 1) to a support with 5/16"-18x7/8" hex bolts, lock washers and nuts. 6. Measure the distance from a falling garage door opener, fasten it SECURELY to structural supports before installing the opener. Drill 3/16" pilot holes in line with rail grease. Operate the door manually. NOTE: DO NOT connect power to required lengths. 3. Cut both pieces of the...

3850 Elite Series Manual - Page 13

.../red to a single gang box (Figure 1). If additional wall controls are no obstructions to door travel to cross path of closing garage door: • Install door control within sight of door, at the lower/middle portion of the cover with a small flat-head screwdriver (Figure 1). NEVER permit anyone to the full open circuit. 4. DO NOT overtighten. • Replace cover...

3850 Elite Series Manual - Page 14

...battery. • Verify the battery wires are seated in the channel. • Replace battery... lens. • Use A19, standard neck garage door opener bulbs for approximately 4-1/2 minutes when power is...light socket. To prevent damage to the opener: • DO NOT use bulbs larger ...head screwdriver, remove the battery cover on the motor unit. • Partially insert battery into motor unit with ...

3850 Elite Series Manual - Page 15

... opener must be in compliance with an overhand knot at least 1" (2.5 cm) from electrocution or fire: • Disconnect ALL electric and battery power BEFORE performing ANY service or maintenance. • Garage door ... broken springs or unbalanced door could fall. To reduce the risk of persons and obstructions. • NEVER use an extension cord, 2-wire adapter, or change plug in ANY way to...

3850 Elite Series Manual - Page 16

... will detect an obstacle in the down direction. Either can be installed on the wall, the brackets must be securely fastened to avoid drilling extra holes in masonry if repositioning... 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. If installing in masonry construction, add a ...

3850 Elite Series Manual - Page 24

... you would like it is balanced properly and is not sticking or binding. Push the door control or programmed remote control a third time to enter into Force Adjustment Mode LED Black Button Purple Button Figure 3 or LOCK LIGHT 24 If the garage door opener cannot open and close (DOWN). 3. Push the purple button twice to close the...

3850 Elite Series Manual - Page 25

... SAFETY CHECK: Test the Safety Reverse System after: • Each adjustment of door arm length, limits, or force controls. • Any repair to or adjustment of the garage door (including springs and hardware). • Any repair to or buckling of the opener. The garage door opener will flash. Complete Adjustment Steps 1 and 2 Program the Travel Limits and Set...

3850 Elite Series Manual - Page 26

... will reverse. However, you can be tested every month. when the opener is 100 watts maximum. ALWAYS keep garage door in an open , the door will stop . 4. If possible, use emergency release handle unless garage doorway is activated. Failure to move . • The Wall-Mounted Door Control: Hold the push button or bar down travel . 4. If the obstruction interrupts...

3850 Elite Series Manual - Page 31

...obstructions. My door reverses for the force and limit settings is against the stop . Refer to disengage. Using the Wall-Mounted Door Control, Light Feature. 6. If battery status LED is...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 ...

3850 Elite Series Manual - Page 32

... "Learn" Button Installed Safety Reversing Sensor Your garage door opener is not recognized. 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), replace as needed . • Disconnect wires at door control, touch wires together. Symptom: Sending indicator...

3850 Elite Series Manual - Page 34

... Add or Reprogram a Hand-held remote that you wish to operate with 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 heard. *3-Button Remotes (315...

3850 Elite Series Manual - Page 35

...changed by one person without using a ladder. 1. USING THE "LEARN" BUTTON USING THE DOOR CONTROL LOCK LIGHT 1. The learn " button on the door control. 2. Within 30 seconds, enter a four digit personal identification number (PIN) of openings...have chosen, then press Enter. To set the number of your garage door opener. OR 3. To set the number of hours this temporary PIN expires...

3850 Elite Series Manual - Page 38

...: Provides backup power to operate garage door opener from lightning and power surges. 38 Includes battery. Laser Park Assist: Laser enables homeowners to protect LiftMaster® garage door openers against damage from outside by disengaging trolley. 373P 41A5281 Extension Brackets: (Optional) For safety reversing sensor installation onto the wall or floor. 374LM 377LM SECURITY...