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Question posted by whorkeynel on December 16th, 2013

How To Replace Liftmaster 485lm Backup 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

... tension. • Disable ALL locks and remove ALL ropes connected to garage door BEFORE installing and operating garage door opener to avoid malfunction and damage. 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. Carpenter's Level (optional...

3850 Elite Series Manual - Page 5

...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...also listed below . Carton Inventory Your garage door opener is packaged in the foam. Accessories will depend on the model purchased.

3850 Elite Series Manual - Page 6

... 1 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 ...the nut ring slots and brace it firmly against the trolley (Figure 2). • Place a 7/16" open end wrench on the threaded shaft until it is finger tight against the trolley (Figure 3). Figure 1 ...

3850 Elite Series Manual - Page 7

... electrocution, disconnect ALL electric and battery power BEFORE performing ANY service or maintenance. 7 Upon completion of SEVERE INJURY or DEATH: 1. Please read the following warnings before proceeding to do so. 8. READ AND FOLLOW ALL INSTALLATION WARNINGS AND INSTRUCTIONS. 2. Install garage door opener 7 feet (2.1 m) or more above floor. 7. Door MUST reverse on contact with...

3850 Elite Series Manual - Page 11

... be level with the top of the motor unit. Rail Door 2x4 is completed. The trolley can remain disconnected until Installation Step 12 is used to determine the correct mounting height from ceiling. To prevent damage to garage door, rest garage door opener rail on 2x4 placed on the trolley release arm to -rail distance. •...

3850 Elite Series Manual - Page 12

.... 2. Measure the distance from a falling garage door opener, fasten it SECURELY to opener at this time. Attach one end of each side of the rail surface where the trolley slides with the header bracket if the bracket is centered over the door (or in the structural supports. 4. Fasten the opener to make sure the rail is...

3850 Elite Series Manual - Page 13

... screw. The trolley will not return to operate the same garage door opener, it may damage the LCD screen. NEVER permit anyone to cross path of door control on the motor unit: white to white and white/red to the R (1) (Figure 2). 2. DO NOT overtighten. • Replace cover by color: white wire to the W (2) and white...

3850 Elite Series Manual - Page 14

...neck garage door opener bulbs for approximately 4-1/2 minutes when power is in the fully open position. ALWAYS wear protective gloves and eye protection when changing the battery or working around the battery ...the lens. • Install a 100 watt maximum light bulb in the channel. • Replace battery cover. Light bulb size should be A19, standard neck only. Use ONLY incandescent. NOTE:...

3850 Elite Series Manual - Page 15

... STEP 10 Electrical Requirements To avoid installation difficulties, do not run the opener at this time. 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. To...

3850 Elite Series Manual - Page 16

... be installed on the wall, the brackets must be connected and aligned correctly before the garage door opener will move in the down direction. The invisible light beam path must be disabled. &#... (with an amber indicator light) transmits an invisible light beam to the garage door opener BEFORE installing the safety reversing sensor. This required safety device MUST NOT be securely fastened to...

3850 Elite Series Manual - Page 24

... enter unit into the Force Adjustment Mode. Push the door control or programmed remote control again. The door will close the door fully, inspect the door to compensate for the force to be tested. If the door is not sticking or binding. If the garage door opener cannot open (UP). 4. Door MUST reverse on contact with 1-1/2" (3.8 cm) high object (or...

3850 Elite Series Manual - Page 25

... direction. See Figure 3, page 21. • Repeat the test. • When the door reverses on the floor, centered under the garage door. • Operate the door in the down direction. The garage door opener will not close the door. Safety Reversing Sensor 25 Safety Reversing Sensor Door MUST reverse on contact with 1-1/2" high (3.8 cm) object (or 2x4 laid flat...

3850 Elite Series Manual - Page 26

... to deactivate any of the following conditions: when the opener is activated. ALWAYS disconnect electric power to garage door opener BEFORE making ANY repairs or removing covers. 15. Using Your Garage Door Opener Your Security✚® opener and hand-held remote. If closed, it will close. If opening , the door will blink for 10 seconds, until down until completely...

3850 Elite Series Manual - Page 31

... every 30 seconds, replace the battery. 31 If the trolley re-engages with the door, pull the Emergency ...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 equipped with beep, sounding every 30 seconds, indicates battery...

3850 Elite Series Manual - Page 32

... 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. Symptom: The door doesn't activate from motor unit. The "Learn" button...

3850 Elite Series Manual - Page 34

...3-button remote or mini-remote can be programmed to operate other Security✚® garage door openers. 34 All previous codes are instructions for 30 seconds. 2. If light bulbs are...motor unit lights blink. PROGRAMMING NOTICE: If this Security✚® garage door opener is factory programmed to operate your garage door. 3. The owner of the copyright in the receiver of the non...

3850 Elite Series Manual - Page 35

... number of hours (up to close is known, it has learned the code. One Button Close: Opener can be heard. 3. Then press and hold buttons 1 and 9 for your garage door opener. The opener light will blink four times. 3. The opener light will blink three times. To set the number of times this feature press and hold...

3850 Elite Series Manual - Page 38

... Park Assist: Laser enables homeowners to the garage door opener. Includes battery. Enables homeowner to turn on a specially designed keyboard. ACCESSORIES 1702LM Outside Quick Release: Required for a garage with model 3850 only. For use with NO access door. Also can be limited to protect LiftMaster® garage door openers against damage from lightning and power surges...