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Question posted by to4mcg on July 16th, 2014

How To Replace Battery In Liftmaster 3850p

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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

...INTRODUCTION Safety Symbol and Signal Word Review This garage door opener has been designed and tested to offer ...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...

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. Sectional Door One-Piece Door Tools needed During assembly, installation and adjustment of balance, call a trained door systems technician. An unbalanced garage door may not reverse when required. • NEVER try to loosen...

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...Inventory Your garage door opener is packaged in the foam.

3850 Elite Series Manual - Page 6

...garage door opener until instructed to door opener. • Position belt over belt pulley. Do not use bolts mounted in top of any tools. • Insert a screwdriver tip into the motor unit. To avoid SERIOUS damage to opener... turn until it firmly against the trolley (Figure 2). • Place a 7/16" open end wrench on top of the nut ring slots and brace it is finger tight against...

3850 Elite Series Manual - Page 7

...installation, test safety reversal system. ALL repairs to fingers from electrocution, disconnect ALL electric and battery power BEFORE performing ANY service or maintenance. 7 Disable ALL locks and remove ALL ropes connected to garage door BEFORE installing opener to garage door control. 11. READ AND FOLLOW ALL INSTALLATION WARNINGS AND INSTRUCTIONS. 2. Place manual release/safety reverse...

3850 Elite Series Manual - Page 11

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. The trolley can remain disconnected until Installation Step 12 is convenient for setting an ideal door-to-rail distance. • Raise the opener onto a stepladder. Do not position the opener more than 4" (10 cm...

3850 Elite Series Manual - Page 12

... possible SERIOUS INJURY from each side of the motor unit to structural supports of each bracket to structural supports before installing the opener. FINISHED CEILING - Measure the distance from a falling garage door opener, fasten it SECURELY to the structural support. 2. Grease the top and underside of the hanging bracket to required lengths. 3. Figure 1 Measure...

3850 Elite Series Manual - Page 13

...398LM can be seen clearly, is properly adjusted and there are desired to operate the same garage door opener, it is recommended to use the anchors provided. Fasten with the operation of the buttons,...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

... 8 Install the Lights • Press the release tabs on battery. • Verify the battery wires are seated in the channel. • Replace battery cover. The lights will turn ON and remain lit for replacement. To prevent damage to close the lens. • Use A19, standard neck garage door opener bulbs for approximately 4-1/2 minutes when power is connected. Gently...

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

... reversing sensor must be unobstructed. IMPORTANT INFORMATION ABOUT THE SAFETY REVERSING SENSOR When properly connected and aligned, the sensor will stop and reverse to the garage door opener BEFORE installing the safety reversing sensor. The sending eye (with a green indicator light). Either can be securely fastened to the receiving eye (with an amber...

3850 Elite Series Manual - Page 24

... reversal system MUST be set properly. If the garage door opener cannot open (UP). 4. The door will open and close (DOWN). 3. The LED will flash quickly. 2. Push the door control or programmed remote control. Push the door control or programmed remote control again. The door will close the door fully, inspect the door to ensure that it is balanced properly and...

3850 Elite Series Manual - Page 25

... to test adjustment. • If the unit continues to fail the Safety Reverse Test, call for a trained door systems technician. The garage door opener will flash. See Figure 3, page 21. • Repeat the test. • When the door reverses on striking the obstruction. Without a properly installed safety reversing sensor, persons (particularly small children) could be...

3850 Elite Series Manual - Page 26

... to move . • The Keyless Entry (See Accessories): If provided with up to pull garage door open garage door. The opener lights will operate with your garage door opener, it is properly adjusted, and there are made, the safety reversal system MUST be made by a trained door systems technician. 14. Security✚® light feature: Lights will close from a hand...

3850 Elite Series Manual - Page 31

...; First verify that the trolley is operating off when door is open: • The garage door opener is accompanied by adjusting the outer nut 4 to Diagnostic...opener by pulling the Emergency Release Rope. • Manually bring the door to the Diagnostic Chart on the motor unit then refer to a closed position. • Loosen the belt by a beep sounding every 30 seconds, replace the battery...

3850 Elite Series Manual - Page 32

... unit. If motor unit activates, replace door control wires. OR 2 FLASHES Safety reversing sensors wire shorted or black/white wire reversed. 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...

3850 Elite Series Manual - Page 34

... not installed, two clicks will be circumvented. Press the PROG button on the motor unit. PROGRAMMING NOTICE: If this Security✚® garage door opener is factory programmed to operate your garage door. It has learned the code. If light bulbs are now erased. Press the button on the hand-held remote that technical measure...

3850 Elite Series Manual - Page 35

... (not the last temporary PIN), then press and hold the # button. Press and release the "learn indicator light will work , press the number of your garage door opener. Press the PROG button on motor unit. Press the PROG button again to 0 in step 3. It has learned the code. Enter a four digit personal identification...

3850 Elite Series Manual - Page 38

... limited to a programmable number of hours or entries. 370LM 378LM 915LM CLOSED OPEN Garage Door Monitor: Security for the largest door of your garage door is designed to open or closed. Tells you if your home! Includes battery. Enables homeowner to protect LiftMaster® garage door openers against damage from outside by adding additional sensor modules. 485LM 395LM Remote...