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LiftMaster 3850 Support Question

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Question posted by mhbaghai on September 12th, 2014

I Replaced The Batteries Three Days Back But Still Green Light Still Flashing.

I thought after two days the battery should be charged but i am in my third days and green light still is flushing indicating chraging, is this normal?

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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

... possible SERIOUS INJURY or DEATH: • ALWAYS 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 avoid entanglement. Release the door. An unbalanced garage door may not reverse when required. • NEVER try to make...

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... Carton Inventory Your garage door opener is also listed ...

3850 Elite Series Manual - Page 6

... releases and snaps the nut ring against the trolley (Figure 1). To avoid SERIOUS damage to door opener. • Position belt over belt pulley. Washered Bolt 5/16"-18x1/2" Rail Hole USE ONLY...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. Tighten...

3850 Elite Series Manual - Page 7

... laid flat) on the floor. 13. You have now finished assembling your garage door opener. ALL repairs to fingers from electrocution, disconnect ALL electric and battery power BEFORE performing ANY service or maintenance. 7 NEVER connect garage door opener to power source until instructed to garage door control. 11. Door MUST reverse on wall next to do so. 8. Attach with #8x3...

3850 Elite Series Manual - Page 11

... ceiling. 11 ENGAGED Trolley Release Arm RELEASED ONE-PIECE DOOR WITHOUT TRACK • With the door fully open and parallel to the floor, measure the distance 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...

3850 Elite Series Manual - Page 12

... screws. 5. Hanging brackets should be angled (Figure 1) to structural supports before installing the opener. Concrete anchors MUST be different. Measure the distance from a falling garage door opener, fasten it SECURELY to make sure the rail is not centered above the door). 7. Operate the door manually. NOTE: DO NOT connect power to the structural support. 2. Fasten the...

3850 Elite Series Manual - Page 13

... Screws LOCK LOCK Lock Button Light Button DoDooroCroCnotnrotrlol CoCnonnenceticotniosns StriSptwripirew7ir/e167"/1(61"1 mm) 7/167"/(1161" (m11mm) m) To insTeortreolrearseeleaosreinwsierret,wpiurseh, in sight until the sensor beam is properly adjusted and there are desired to operate the same garage door opener, it is not connected BEFORE installing door control. • Connect ONLY to...

3850 Elite Series Manual - Page 14

... bulbs. Release Tab 100 Watt (Max) Standard Light Bulb 100 Watt (Max) Standard Light Bulb Lens Hinge 14 The lights will turn ON and remain lit for replacement. Then the lights will turn OFF. • 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...

3850 Elite Series Manual - Page 15

...do not run the opener at least 1" (2.5 cm) from electrocution or fire: • Disconnect ALL electric and battery power BEFORE performing ANY service or maintenance. • Garage door installation and wiring ...If rope knot becomes untied, you have, contact a qualified electrician to the green ground screw. Overhand Knot Emergency Release Handle Rope NOTICE Trolley Release Arm Overhand...

3850 Elite Series Manual - Page 16

... the opener lights will detect an obstacle in the down direction. IMPORTANT INFORMATION ABOUT THE SAFETY REVERSING SENSOR When properly connected and aligned, the sensor will flash 10 times. above the floor. The sending eye (with a green indicator light). The mounting brackets are available if needed. To prevent SERIOUS INJURY or DEATH from inside the garage so...

3850 Elite Series Manual - Page 24

... LOCK LIGHT 24 The door must travel through a complete cycle, up and down, in order for a binding or sticking garage door. • After ANY adjustments are made, the safety reversal system MUST be set properly. The door will flash quickly. 2. If the garage door opener cannot open and close the door (DOWN). The LED will close the door fully, inspect the door to...

3850 Elite Series Manual - Page 25

... or adjustment of the garage door (including springs and hardware). • Any repair to or buckling of the garage floor. • Any repair to or adjustment of the door. • Press the remote control push button to close from a remote if the indicator light in the down position. If the opener closes the door when the safety reversing...

3850 Elite Series Manual - Page 26

... children. NEVER permit children to garage door opener BEFORE making ANY repairs or removing covers. 15. ONLY activate garage door when it will also turn off , press and hold the light button for 10 seconds until completely closed. Weak or broken springs or unbalanced door could result in a partially open garage door. If closing , the door will stop . 4. If the sensor...

3850 Elite Series Manual - Page 31

... 30 seconds, replace the battery. 31 Using the Wall-Mounted Door Control, Light Feature. 6. My motor unit hums briefly: • First verify that the trolley 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 not...

3850 Elite Series Manual - Page 32

... to be replaced. 32 Symptom: The door doesn't activate from the door control. • Inspect door control/wires for the sensors. Consult Diagnostic Chart below. 1 FLASH Safety reversing sensors wire open (broken or disconnected). If motor unit activates, replace door control wires. Symptom: Sending indicator light glows steadily, receiving indicator light is programmed...

3850 Elite Series Manual - Page 34

... unit. LOCK LIGHT LOCK LIGHT 4. Press and release the "learn indicator light will be programmed to operate other Security✚® garage door openers. 34 All previous codes are not installed, two clicks will glow steadily for programming your opener to operate with your garage door. 3. PROGRAMMING NOTICE: If this Security✚® garage door opener is factory programmed...

3850 Elite Series Manual - Page 35

...LIGHT 3. Enter a four digit personal identification number (PIN) of your garage door opener. LOCK LIGHT To change an existing, known PIN If the existing PIN is deactivated. 35 Release the # button. 2. It can be heard. 3. If light... Button Close: Opener can be heard. 2. Press and release the "learn indicator light will blink twice when the one button close the door even after it...

3850 Elite Series Manual - Page 38

... 3-Button Remote Control with SECURITY✚® : Includes visor clip. 990LM SECURITY✚® 3-Button Remote Control : Includes visor clip. For use with NO access door. Wireless Door Control: Push bar, light feature and auxiliary button. ACCESSORIES 1702LM Outside Quick Release: Required for a garage with model 3850 only. Includes battery.