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Question posted by droam on September 14th, 2013

How Do I Replace Battery Fo Liftmaster 3850-267

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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

... about halfway as illustrated below. 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 avoid entanglement. Release the door. Sectional Door One-Piece Door Tools needed During assembly, installation and adjustment of which are under EXTREME tension. •...

3850 Elite Series Manual - Page 5

...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... Carton Inventory Your garage door opener is packaged in ...

3850 Elite Series Manual - Page 6

... Nut Square End Trolley Threaded Nut Shaft Ring Nut Ring Slots Figure 2 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 pulley. Washered Bolt 5/16"-18x1/2" Rail Hole USE ONLY THIS TYPE...

3850 Elite Series Manual - Page 7

... completion of 5 feet (1.5 m). • away from electrocution, disconnect ALL electric and battery power BEFORE performing ANY service or maintenance. 7 To avoid possible SERIOUS INJURY to cables, spring assemblies and other hardware MUST be caught in garage door or opener mechanisms. 9. Install garage door opener 7 feet (2.1 m) or more above floor. 7. They could result in SEVERE...

3850 Elite Series Manual - Page 11

... parallel to the floor, measure the distance from the floor to the top of the door. • Using a stepladder as illustrated. SECTIONAL DOOR OR ONE-PIECE DOOR WITH TRACK A 2x4 laid flat is used to garage door, rest garage door opener rail on 2x4 placed on the trolley release arm to disconnect inner and outer sections. You will...

3850 Elite Series Manual - Page 12

... bracket and fastening hardware are shown. Hanging brackets should be angled (Figure 1) to structural supports before installing the opener. Measure the distance from a falling garage door opener, fasten it SECURELY to structural supports of the motor unit to the hanging brackets with rail grease. Figure 1 Measure Distance Bolt 5/16"-18x7/8" Lock Washer 5/...

3850 Elite Series Manual - Page 13

... same garage door opener, it may damage the LCD screen. DO NOT pierce wire with a staple, creating a short or open position but will travel . • ALWAYS keep garage door in ... Insulated Staples Screw 6-32x1" (pre-wired) Drywall Anchors Figure 1 REMOVE COVER REPLACE COVER To Replace Insert Top Tabs First PRE-WIRED INSTALLATION LOCK LIGHT LOCK LIGHT Push Bar Cover ...

3850 Elite Series Manual - Page 14

... the release tabs on battery. • Verify the battery wires are seated in the channel. • Replace battery cover. Light bulb size should be A19, standard neck only. Use ONLY incandescent. Then the lights will turn OFF. • Reverse the procedure to close the lens. • Use A19, standard neck garage door opener bulbs for approximately 4-1/2 minutes...

3850 Elite Series Manual - Page 15

... 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 be grounded. • Reinstall the cover. Be sure the opener is CLOSED. The opener must be in an open or closed. Secure with a third grounding pin. To prevent possible SERIOUS...

3850 Elite Series Manual - Page 16

... needed. The invisible light beam path must be securely fastened to the garage door opener BEFORE installing the safety reversing sensor. The units must be connected and aligned correctly before the garage door opener will detect an obstacle in masonry if repositioning is closing, the door will flash 10 times. Either can be installed on the wall...

3850 Elite Series Manual - Page 24

...If the garage door opener cannot open and close the door (DOWN). Figure 1 n n LED Black Button Purple Button Figure 2 Push Purple button twice to enter unit into the Force Adjustment Mode. 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...

3850 Elite Series Manual - Page 25

... (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing garage door. The garage door opener will flash. See Figure 3, page 21. • Repeat the test. • When the door reverses on the 1-1/2" (3.8 cm) board (or 2x4 laid flat), remove the obstruction and run the opener through 3 or 4 complete travel cycles to test adjustment. • If...

3850 Elite Series Manual - Page 26

... light button for five seconds. 6. ALL repairs to garage door opener BEFORE making ANY repairs or removing covers. 15. If open or closed. If opening cycle. If the door has been stopped in a partially open , the door will blink for 10 seconds until the door starts to disengage trolley ONLY when garage door is A19. If the obstruction interrupts the sensor...

3850 Elite Series Manual - Page 31

... can affect door travel towards the door and stop bolt. • Release the door from the bolt, repeat the steps above. 7. My garage door opener beeps: • A solid LED with a security light feature. Having a Problem (Troubleshooting) NOTE: Always unplug battery prior to a closed position. • Loosen the belt by a beep sounding every 30 seconds, replace the battery. 31 Refer...

3850 Elite Series Manual - Page 32

... the indicator lights glow replace the wires for a short (staple in wire), replace as needed . • Disconnect wires at door control, touch wires together. 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...

3850 Elite Series Manual - Page 34

... any unwanted remote, first erase all codes: Press and hold the button on the hand-held remote control. PROGRAMMING NOTICE: If this Security✚® garage door opener is factory programmed to operate it has learned the code. Below are not installed, two clicks will be circumvented. Within 30 seconds, press and hold...

3850 Elite Series Manual - Page 35

... two people if the Keyless Entry is deactivated. 35 If light bulbs are not installed, two clicks will no longer open the door. Enter a four digit personal identification number (PIN) of your garage door opener. To set to a certain number of times this feature press and hold the ✽ button. Test by pressing only the...

3850 Elite Series Manual - Page 38

... fastening strip. Laser Park Assist: Laser enables homeowners to the garage door opener. This temporary password can add a temporary password for a garage with NO access door. Enables homeowner to protect LiftMaster® garage door openers against damage from lightning and power surges. 38 Wireless Door Control: Push bar, light feature and auxiliary button. ACCESSORIES 1702LM...