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LiftMaster 3850 Support Question

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Question posted by mellilc on April 13th, 2014

What Is Beeping Sound From Liftmaster Garage Door Opener Model 3850

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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

... 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 instructions and warnings contained in strict accordance with the cautionary statements that accompany them...

3850 Elite Series Manual - Page 3

... door systems technician if garage door binds, sticks, or is out of the opener, instructions will call a trained door systems technician. 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 make sure your garage door is balanced and is any ropes connected to garage door...

3850 Elite Series Manual - Page 5

... packing material. 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 Lenses...Rail Grease Carriage Bolt 1/4"-20x1/2" (2) Wing Nut 1/4"-20 (2) 5 Carton Inventory Your garage door opener is packaged in the foam.

3850 Elite Series Manual - Page 6

... over belt pulley. 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... the spring releases and snaps the nut ring against the trolley (Figure 2). • Place a 7/16" open end wrench on top of motor unit.

3850 Elite Series Manual - Page 7

... (1.5 m). • away from moving parts of SEVERE INJURY or DEATH: 1. Disable ALL locks and remove ALL ropes connected to garage door BEFORE installing opener to do so. 8. Install garage door opener 7 feet (2.1 m) or more above floor. 7. Install garage door opener ONLY on the floor. 13. Place entrapment warning label on inside of installation, test safety reversal system. To avoid...

3850 Elite Series Manual - Page 11

... to the floor, measure the distance from the floor to the top of the door. • Using a stepladder as illustrated. SECTIONAL DOOR OR ONE-PIECE DOOR WITH TRACK A 2x4 laid flat is completed. 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...

3850 Elite Series Manual - Page 12

... bracket to required lengths. 3. This bracket and fastening hardware are shown. 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. If the door hits the rail, raise the header bracket. 8. Lag Screws 5/16"-18x1-7/8" (Not Provided) Bolt 5/16"-18x7...

3850 Elite Series Manual - Page 13

... to 24 VOLT low voltage wires. Adjust screw for snug fit. • Drill and install top screw with care to each garage door opener. Strip 7/16" (11 mm) of insulation from end of the door control is slower at this time. NOTE: The functional temperature range of bell wire. CAUTION: Continuous exposure of the...

3850 Elite Series Manual - Page 14

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

3850 Elite Series Manual - Page 15

... 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. Be sure the opener is required by your garage door opener has a grounding type plug with an overhand knot at this time. To reduce the risk of the...

3850 Elite Series Manual - Page 16

... 6" (15 cm) above floor 16 INSTALLATION STEP 11 Install The Protector System® The safety reversing sensor must be connected and aligned correctly before the garage door opener will flash 10 times. IMPORTANT INFORMATION ABOUT THE SAFETY REVERSING SENSOR When properly connected and aligned, the sensor will detect an obstacle in the down...

3850 Elite Series Manual - Page 24

... of safety reversal system. • NEVER use force adjustments to compensate for the force to be tested. Push the door control or programmed remote control again. If the garage door opener cannot open and close the door. 1. Figure 1 n n LED Black Button Purple Button Figure 2 Push Purple button twice to ensure that it , repeat Program the Travel...

3850 Elite Series Manual - Page 25

... move more than 1" (2.5 cm), and the opener lights will not close the door. NOTE: On a sectional door, make sure limit adjustments do not force the door arm beyond a straight up and down direction. The garage door opener will flash. Safety Reversing Sensor 25 Safety Reversing Sensor If the opener closes the door when the safety reversing sensor is obstructed...

3850 Elite Series Manual - Page 26

ALWAYS keep remote controls out of reach of children. Weak or broken springs or unbalanced door could result in an open garage door. Using Your Garage Door Opener Your Security✚® opener and hand-held remote. If closing , the door will reverse. 3. If obstructed while opening cycle. However, you wish to move. • The Keyless Entry (See Accessories): If provided...

3850 Elite Series Manual - Page 31

... instructions. If battery status LED is normal. 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 normal. My remotes will not activate the door: • Verify your door, check diagnostic LED for the force and limit...

3850 Elite Series Manual - Page 32

... 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. Consult Diagnostic Chart below. 1 FLASH Safety reversing sensors wire open (broken or disconnected). Symptom: No movement, motor runs 2-3 seconds. • Reconnect the emergency release. • Motor may...

3850 Elite Series Manual - Page 34

... on the hand-held remote* that you wish to operate with a non-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 be programmed to confirm Learn Mode. 3. PROGRAMMING NOTICE: If this Security✚...

3850 Elite Series Manual - Page 35

...up one person without using a ladder. 1. Press and release the "learn indicator light will no longer open the door. Then press and hold the # button. It has learned the code. After a programmed number of ... keypad will blink four times. 3. To set the number of your garage door opener. The opener light will blink twice when the one button close is already mounted outside the...

3850 Elite Series Manual - Page 38

... number of your garage door is designed to protect LiftMaster® garage door openers against damage from lightning and power surges. 38 Wireless Door Control: Push bar...open or closed. Enables homeowner to operate garage door opener from car, bedside, or anywhere in the garage. Tells you if your home! ACCESSORIES 1702LM Outside Quick Release: Required for a garage with model 3850...