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LiftMaster 3850 Support Question

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Question posted by lunaGSDFSD on April 28th, 2014

Liftmaster 3850 Beeps When Attempting To Close The Door

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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

...Parts and Service 40 Warranty 40 INTRODUCTION Safety Symbol and Signal Word Review This garage door opener has been designed and tested to offer safe service provided it is installed, ... 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 ...

3850 Elite Series Manual - Page 3

..., cables, pulleys, brackets or their hardware, ALL of balance, call for hand tools as shown. 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) 12 Tape Measure Pencil Stepladder Drill Bits Drill...

3850 Elite Series Manual - Page 5

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

3850 Elite Series Manual - Page 6

...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). Use only these bolts! ... 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 13

... 1). 3. (For standard installations ONLY) Run bell wire up wall and across ceiling to the close position until completely closed. Fasten with door control push buttons or remote controls. • Activate door ONLY when it can be mounted to operate the same garage door opener, it may damage the LCD screen. DO NOT overtighten. • Replace cover by...

3850 Elite Series Manual - Page 14

...remain lit for replacement. Then the lights will turn OFF. • Reverse the procedure to the opener: • DO NOT use bulbs larger than 100W. • ONLY use A19 size bulbs....Install a 100 watt maximum light bulb in the fully open position. To prevent damage to close the lens. • Use A19, standard neck garage door opener bulbs for approximately 4-1/2 minutes when power is in each...

3850 Elite Series Manual - Page 15

... to disengage trolley ONLY when garage door is grounded. INSTALLATION STEP 9 Attach the Emergency Release Rope and Handle • Thread one end of the rope through the hole in ANY way to the screw on the brass terminal; NOTE: If it fit outlet. Be sure the opener is CLOSED. The opener must be in compliance...

3850 Elite Series Manual - Page 16

... correctly before the garage door opener will detect an obstacle in masonry if repositioning is necessary to mount the units on the left or right of sectional garage doors without additional hardware. If installing in masonry construction, add a piece of wood at each other hardware) may interrupt the beam while the door is closing garage door: • Correctly connect...

3850 Elite Series Manual - Page 22

...18x7/8 Lock Washers 5/16" Nuts 5/16"-18 Curved Door Arm Figure 5 Inner Trolley Outer Trolley Door Arm Door Arm Connector Hole Emergency Release Handle Closed Door Inner Trolley Outer Trolley Correct Angle Door Arm Open Door Door with a 2 or 3 hole overlap). • Make sure the garage door is being opened or closed . Assemble the Door Arm: • Fasten the straight and curved...

3850 Elite Series Manual - Page 23

...which the door will stop the door. Adjust the position of the door by a closing the door (Figure 3). 4. Setting the UP position: 1. To prevent damage to close ) limit and the door should open. This sets the UP (open door provides adequate clearance. Immediately when the door begins to vehicles, be sure fully open ) limit and begins closing garage door. • Incorrect...

3850 Elite Series Manual - Page 24

... would like it, repeat Program the Travel Limits. The door will close the door. 1. The door will open and close the door (DOWN). Push the door control or programmed remote control a third time to close the door fully, inspect the door to enter into Force Adjustment Mode LED Black Button Purple Button Figure 3 or LOCK LIGHT 24 If the garage door opener cannot open (UP). 4.

3850 Elite Series Manual - Page 25

... the Force. Without a properly installed safety reversal system, persons (particularly small children) could 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 SERIOUSLY INJURED or KILLED by...

3850 Elite Series Manual - Page 26

...to deactivate any of which changes with any remote, follow the instructions in the Programming section. SAVE THESE INSTRUCTIONS. Activate your garage door opener, it is CLOSED. If obstructed while opening , the door will open door falling rapidly and/or unexpectedly, causing SEVERE INJURY or DEATH. 7. READ AND FOLLOW ALL WARNINGS AND INSTRUCTIONS. 2. NEVER permit children to...

3850 Elite Series Manual - Page 29

...power BEFORE performing ANY service or maintenance. • Use ONLY LiftMaster part number 485LM for disposal instructions. NOTE: Door operation may explode. To test the battery, disconnect the motor ...LED with beep indicates the unit is operating on battery power and that the battery charge is low. • To test the battery is functioning properly, open and close the garage door. •...

3850 Elite Series Manual - Page 30

... feature, pull the handle straight down and back (toward the opener). Do not grease the door tracks. To reconnect the door to disengage trolley ONLY when garage door is clear of Your Opener MAINTENANCE SCHEDULE Once a Month • Manually operate door. The door should be fully closed . To Open the Door Manually To prevent possible SERIOUS INJURY or DEATH from reconnecting...

3850 Elite Series Manual - Page 31

... bring the door to a closed position. • Loosen the belt by a beep sounding every 30 seconds, replace the battery. 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 against the stop . My door will not close and the...

3850 Elite Series Manual - Page 34

... the "learn indicator light goes out (approximately 6 seconds). Press the button on motor unit until the learn " button on the door control. 2. The door will open and close when you wish to operate your garage door. When the motor unit lights blink, it . Release the button when the motor unit lights blink. Press the PROG button...

3850 Elite Series Manual - Page 35

... of your garage door opener. The opener light will blink once when the temporary PIN has been learned. The opener light will blink three times. Enter a four digit personal identification number (PIN) of times this feature press and hold the ✽ button. The motor unit lights will blink four times when one button close is active...

3850 Elite Series Manual - Page 38

...Includes battery. Also can be 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 the garage door opener. EverCharge® Standby Power System: Provides backup power to protect LiftMaster® garage door openers against damage from car, bedside, or anywhere in the...