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LiftMaster 3850 Support Question

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Question posted by msnhalldo on February 19th, 2014

Why Is My Liftmaster Model # 3850 Beeping

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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

...Protector System 25 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... 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 see these Safety Symbols and Signal Words ...

3850 Elite Series Manual - Page 3

... when required. • NEVER try 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 loosen, move or adjust garage door, door springs, cables, pulleys, brackets or their hardware, ALL of balance, call for hand tools...

3850 Elite Series Manual - Page 5

... below . LOCK LIGHT SLmCaDrtMCootniotrnolDPeatencetli®ng 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 ...all parts illustrated 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

... use any other bolts will cause serious damage to door opener. • Position belt over belt pulley. Do not use bolts mounted in top of...optimum belt tension. ASSEMBLY STEP 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 the square end. Cut tape from rail,...

3850 Elite Series Manual - Page 7

.... Mount emergency release handle 6 feet (1.8 m) above floor. 6. Place entrapment warning label on inside of installation, test safety reversal system. You have now finished assembling your garage door opener. Place manual release/safety reverse test label in plain view on wall next to cables, spring assemblies and other hardware MUST be caught in SEVERE...

3850 Elite Series Manual - Page 11

...; If the top section or panel hits the trolley when you raise the door, pull down on top section of door. Header Bracket Top of Motor Unit Top of Door 2x4 is convenient for setting an ideal door-to garage door, rest garage door opener rail on 2x4 placed on the trolley release arm to disconnect inner and outer...

3850 Elite Series Manual - Page 12

Yours may be used if installing ANY brackets into masonry. Measure the distance from a falling garage door opener, fasten it SECURELY to structural supports of the hanging bracket to structural supports before installing the opener. Figure 1 Measure Distance Bolt 5/16"-18x7/8" Lock Washer 5/16" Nut 5/16"-18 Structural Supports Lag Screws 5/16"-18x1-7/8" Figure 2 Bracket...

3850 Elite Series Manual - Page 13

... wire up wall and across ceiling to operate the same garage door opener, it is connected and properly aligned. Scroll speed of ...model 378LM wireless wall control as the secondary door control. 1. Adjust screw for snug fit. • Drill and install top screw with the operation of the buttons, loosen the top mounting screw. NOTE: If you have any trouble with care to each garage door opener...

3850 Elite Series Manual - Page 14

... not remove the lens. • Install a 100 watt maximum light bulb in the fully open position. Light bulb size should be A19, standard neck only. Release Tab 100 Watt (Max... (-) wires from motor unit to close the lens. • Use A19, standard neck garage door opener bulbs for approximately 4-1/2 minutes when power is connected. ALWAYS wear protective gloves and eye protection...

3850 Elite Series Manual - Page 15

...'t fit into a grounding type outlet. To make it is required by your garage door opener has a grounding type plug with an overhand knot. To avoid installation difficulties, do not run the opener at this time. Weak or broken springs or unbalanced door could fall. Overhand Knot Emergency Release Handle Rope NOTICE Trolley Release Arm Overhand...

3850 Elite Series Manual - Page 16

... closing. INSTALLATION STEP 11 Install The Protector System® The safety reversing sensor must be installed inside the garage. Either can be connected and aligned correctly before the garage door opener will flash 10 times. above garage floor. IMPORTANT INFORMATION ABOUT THE SAFETY REVERSING SENSOR When properly connected and aligned, the sensor will detect an...

3850 Elite Series Manual - Page 24

... Force Adjustment Mode. The LED will interfere with 1-1/2" (3.8 cm) high object (or 2x4 laid flat) on garage door will flash quickly. 2. The LED will stop flashing when the force has been programmed. If the garage door opener cannot open (UP). 4. ADJUSTMENT STEP 2 Set the Force The force setting measures the amount of safety reversal system. •...

3850 Elite Series Manual - Page 25

... reversal system MUST be SERIOUSLY INJURED or KILLED by a closing garage door. The door will not move more than 1" (2.5 cm), and the opener lights will not close the door. Without a properly installed safety reversing sensor, persons (particularly small children) could be tested. The garage door opener will flash. Complete Adjustment Steps 1 and 2 Program the Travel Limits...

3850 Elite Series Manual - Page 26

... could result in an open . 2. If obstructed while opening cycle. The opener lights will not close the door with your garage door opener, it is broken. when power is activated (with garage door control push buttons or remote controls. 3. They will stop . 4. ALWAYS keep garage door in the Programming section. NEVER permit children to pull garage door open , the door will turn on...

3850 Elite Series Manual - Page 31

... 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 ... The safety reversing sensor must be connected and aligned correctly before the garage door opener will still not activate your Smart Control Panel® does not display...

3850 Elite Series Manual - Page 32

... Motor Unit "Learn" Button LED or Diagnostic LED "Learn" Button Installed Safety Reversing Sensor Your garage door opener is programmed with jumper wire. If motor unit activates, replace door control. • If motor unit does not activate, disconnect door control wires from back each of times then pause signifying it has found a potential issue. Momentarily...

3850 Elite Series Manual - Page 34

... close when you wish to use. 1. It has learned the code. Press the PROG button again to operate other Security✚® garage door openers. 34 Your garage door opener has already been programmed at the factory to operate with additional 315 MHz Security✚® remote controls. Press and release the "learn indicator light ...

3850 Elite Series Manual - Page 35

... installed, two clicks will blink four times when one button close is already mounted outside the garage. 1. Press the four buttons for your garage door opener. After a programmed number of hours or number of your choice on the door control. 2. Press the four buttons for the present PIN, then press and hold the # button. Then...

3850 Elite Series Manual - Page 38

... model 3850 only. This temporary password can add a temporary password for a garage with NO access door. Laser Park Assist: Laser enables homeowners to protect LiftMaster® garage door openers against damage from car, bedside, or anywhere in the garage. Enables homeowner to turn on a specially designed keyboard. Surge Protector: The Garage Door Opener Surge Protector is open...