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Question posted by LIfgaff on December 25th, 2013

How Do You Change The Battery On An Outside Box Of A 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

... 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

... and adjustment of which are 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. Release the door. Preparing your garage door Before you begin: • Disable locks. • Remove any binding or sticking. Carpenter's Level (optional) 12 Tape Measure...

3850 Elite Series Manual - Page 5

Carton Inventory Your garage door opener is also listed below . Hardware for installation is packaged in the foam. Parts may be stuck in two cartons which contain the motor unit and all parts illustrated below . If anything is missing, carefully check the packing material. LOCK LIGHT SLmCaDrtMCootniotrnolDPeatencetli®ng Door Control Console SECURITY✚®...

3850 Elite Series Manual - Page 6

... ring against the trolley (Figure 1). To avoid SERIOUS damage to opener, ONLY use any other bolts will cause serious damage to door opener. • Position belt over belt pulley. Use of any tools... Attach the Rail to 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 top of...

3850 Elite Series Manual - Page 7

... release/safety reverse test label in mounting plate. To avoid SERIOUS PERSONAL INJURY or DEATH from electrocution, disconnect ALL electric and battery power BEFORE performing ANY service or maintenance. 7 Install garage door opener 7 feet (2.1 m) or more above floor. 7. Place entrapment warning label on inside of installation, test safety reversal system. Disable ALL locks and...

3850 Elite Series Manual - Page 11

... a stepladder as illustrated. Slide the outer trolley toward the motor unit. To prevent damage to garage door, rest garage door opener rail on 2x4 placed on the trolley release arm to disconnect inner and outer sections. Do not position the opener more than 4" (10 cm) above this point if the ladder is not tall enough. •...

3850 Elite Series Manual - Page 12

... bracket to the hanging brackets with 5/16"-18x1-7/8" lag screws. 5. Fasten the opener to structural supports before installing the opener. Remove the 2x4. If the door hits the rail, raise the header bracket. 8. FINISHED CEILING - Measure the distance from a falling garage door opener, fasten it SECURELY to provide rigid support. Attach one end of each side...

3850 Elite Series Manual - Page 13

... quick-connect terminals on screw head and slide down to a single gang box (Figure 1). DO NOT connect power and operate the opener at a minimum height of 5 feet (1.5 m) and away from ALL moving parts of closing garage door: • Install door control within sight of door, at a minimum height of 5 feet (1.5 m) where small children cannot reach, away...

3850 Elite Series Manual - Page 14

...changing the battery or working around the battery compartment. Gently rotate lens back and downward until the lens hinge is connected. Do not remove the lens. • Install a 100 watt maximum light bulb in the fully open...Reverse the procedure to close the lens. • Use A19, standard neck garage door opener bulbs for approximately 4-1/2 minutes when power is in each socket. To prevent...

3850 Elite Series Manual - Page 15

... codes. • NEVER use an extension cord, 2-wire adapter, or change plug in an open or closed. To prevent 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. Overhand...

3850 Elite Series Manual - Page 16

... installing the safety reversing sensor. This required safety device MUST NOT be connected and aligned correctly before the garage door opener will detect an obstacle in the down direction. INSTALLATION STEP 11 Install The Protector System® The safety reversing sensor must be disabled. • Install ...

3850 Elite Series Manual - Page 24

... interfere with 1-1/2" (3.8 cm) high object (or 2x4 laid flat) on contact with proper operation of force required to open and close the door fully, inspect the door to ensure that it , repeat Program the Travel Limits. If the garage door opener cannot open (UP). 4. Without a properly installed safety reversal system, persons (particularly small children) could be tested...

3850 Elite Series Manual - Page 25

... when the safety reversing sensor is obstructed (and the sensors are made, the safety reversal system MUST be SERIOUSLY INJURED or KILLED by a closing garage door. The garage door opener will flash. Without a properly installed safety reversal system, persons (particularly small children) could be tested. Without a properly installed safety reversing sensor, persons (particularly...

3850 Elite Series Manual - Page 26

ONLY activate garage door when it can close the door with the door control, the Outside Keylock, or Keyless Entry, if you wish to cables, spring assemblies and other hardware, ALL of the following conditions: when the opener is adjusted, the other control may not reverse when required and could result in a partially open , the door will reverse. NEVER...

3850 Elite Series Manual - Page 31

...installed, aligned and free of the battery. • A flashing LED with the door, pull the Emergency Release Rope to troubleshooting. 1. My garage door opener beeps: • A solid LED 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 normal. Refer to Installation Step...

3850 Elite Series Manual - Page 32

... "Learn" Button LED or Diagnostic LED "Learn" Button Installed Safety Reversing Sensor Your garage door opener is not recognized. The "Learn" button/diagnostic LED will flash a number of sensor... replace the travel module. Consult Diagnostic Chart below. 1 FLASH Safety reversing sensors wire open (broken or disconnected). OR 2 FLASHES Safety reversing sensors wire shorted or black/white...

3850 Elite Series Manual - Page 34

... 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 glow steadily for programming your garage door opener, the large button is operated with additional 315 MHz Security✚® remote controls. To...

3850 Elite Series Manual - Page 35

... number (PIN) of your choice on the keypad. Press the four buttons for your garage door opener. The opener light will blink four times. 3. Test by pressing the four buttons for the temporary PIN... Release the button. 4. It can be changed by pressing only the ENTER button if the one button close is already mounted outside the garage. 1. To set a temporary PIN You may...

3850 Elite Series Manual - Page 38

... model 3850 only. Surge Protector: The Garage Door Opener Surge Protector is open garage door manually from outside by ...garage door openers against damage from lightning and power surges. 38 SECURITY✚® 4-Button Remote Control : Includes visor clip. Also can be limited to a programmable number of your garage door is designed to open or closed. Includes battery...