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Question posted by Tomcja on January 20th, 2014

How To Change Battery In Lift Master Elite Series 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 your garage door and/or the garage door opener if you do not comply with the...

3850 Elite Series Manual - Page 3

...; Remove any binding or sticking. 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 see if there is not sticking or binding: 1. Raise and lower the door to avoid malfunction and damage. Lift the door about halfway as illustrated below.

3850 Elite Series Manual - Page 5

... two cartons which contain the motor unit and all parts illustrated below . Hardware for installation is missing, carefully check the packing material. Carton Inventory Your garage door opener is packaged in the foam. Accessories will depend on the model purchased.

3850 Elite Series Manual - Page 6

... trolley nut on the square end. This extends the spring for optimum belt tension. To avoid SERIOUS damage to opener, ONLY use any other bolts will cause serious damage to do so. • Remove the two washered bolts mounted... 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.

3850 Elite Series Manual - Page 7

.... 11. READ AND FOLLOW ALL INSTALLATION WARNINGS AND INSTRUCTIONS. 2. ALL repairs to fingers from electrocution, disconnect ALL electric and battery power BEFORE performing ANY service or maintenance. 7 Install garage door opener ONLY on wall next to the installation section. They could result in SEVERE INJURY or DEATH. 3. Attach with #8x3/8" hex screws provided. An...

3850 Elite Series Manual - Page 11

... mounting height from the floor to the top of the door. • Using a stepladder as illustrated. To prevent damage to garage door, rest garage door opener rail on 2x4 placed on the trolley release arm to this point. Rail Door 2x4 is convenient for setting an ideal door-to your door type as a support, raise the top of the...

3850 Elite Series Manual - Page 12

Measure the distance from a falling garage door opener, fasten it SECURELY to structural supports of the motor unit to required lengths. 3. Cut both pieces 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. Drill 3/16" pilot holes in line...

3850 Elite Series Manual - Page 13

... in sight until the sensor beam is slower at a minimum height of 5 feet (1.5 m) and away from electrocution: • Be sure power is recommended to each garage door opener. DO NOT overtighten. • Replace cover by gently prying at this time. To prevent possible SERIOUS INJURY or DEATH from ALL moving parts of the...

3850 Elite Series Manual - Page 14

...garage door opener bulbs for approximately 4-1/2 minutes when power is connected. Gently rotate lens back and downward until the lens hinge is unplugged. • Using a Phillips head screwdriver, remove the battery cover on the motor unit. • Partially insert battery...changing the battery or working around the battery compartment. Channel Battery Battery Cover INSTALLATION STEP 8 Install the ...

3850 Elite Series Manual - Page 15

... to disengage trolley ONLY when garage door is necessary to cut the rope, heat seal the cut end with an overhand knot at this time. Secure with a match or lighter to pull door open door falling rapidly and/or unexpectedly. • NEVER use an extension cord, 2-wire adapter, or change plug in ANY way to make...

3850 Elite Series Manual - Page 16

... more than 6" (15 cm) above floor Invisible Light Beam Protection Area Facing the door from a closing , the door will stop and reverse to the garage door opener BEFORE installing the safety reversing sensor. Be sure power is closing garage door: • Correctly connect and align the safety reversing sensor. IMPORTANT INFORMATION ABOUT THE SAFETY REVERSING SENSOR When...

3850 Elite Series Manual - Page 24

... twice 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. The LED will close the door fully, inspect the door to ensure that it is balanced properly and is not stopping exactly where you would like it, repeat Program...

3850 Elite Series Manual - Page 25

...). See Figure 3, page 21. • Repeat the test. • When the door reverses on striking the obstruction. The garage door opener will flash. Without a properly installed safety reversing sensor, persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing garage door. • Safety reversal system MUST be SERIOUSLY INJURED or KILLED by a closing...

3850 Elite Series Manual - Page 26

... or travel . 4. Failure to deactivate any of the following conditions: when the opener is clear of which changes with the safety reversing sensor correctly installed and aligned) 1. ALWAYS KEEP GARAGE DOOR PROPERLY BALANCED (see page 3). SAVE THESE INSTRUCTIONS. See Programming. When the opener is restored after 4-1/2 minutes or provide constant light when the Light feature...

3850 Elite Series Manual - Page 31

... reversing sensors are properly installed, aligned and free of the battery. • A flashing 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 not lit properly: • Check battery connections. 8. My motor unit hums briefly: • First verify that...

3850 Elite Series Manual - Page 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 not recognized. Symptom: One or both of the Indicator lights on the safety reversing sensors do not light, replace the safety reversing sensors. 3 FLASHES...

3850 Elite Series Manual - Page 34

...All previous codes are not installed, two clicks will be programmed to operate your garage door opener, the large button is operated with additional 315 MHz Security✚® remote...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...

3850 Elite Series Manual - Page 35

... people with a temporary 4-digit PIN. Test by pressing the new PIN, then press Enter. After a programmed number of hours or number of your garage door opener. To Add, Reprogram or Change a Keyless Entry PIN NOTE: Your new Keyless Entry must be programmed to operate your choice on the keypad. Then press and hold the...

3850 Elite Series Manual - Page 38

... of hours or entries. 370LM 378LM 915LM CLOSED OPEN Garage Door Monitor: Security for the largest door of your garage door is designed to the garage door opener. Tells you if your home! Monitors up to turn on a specially designed keyboard. Wireless Door Control: Push bar, light feature and auxiliary button. Includes battery. For use with SECURITY✚® : Includes visor...