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Question posted by lmorgmt on October 1st, 2013

Chamberlain 3850 Lift Master Power Batt Indicator On And Dor Wont Close

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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

... 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 damage to your opener 30 Having a problem? (Troubleshooting 31 Diagnostic chart 32...

3850 Elite Series Manual - Page 3

... 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 make sure your garage door is balanced and is any ropes connected to garage door. • Complete the following test to avoid malfunction and damage...

3850 Elite Series Manual - Page 5

...Carton Inventory Your garage door opener is packaged in the foam. Accessories will depend on the model purchased. If anything is also listed below . Hardware for installation is missing, carefully check the packing material. LOCK LIGHT SLmCaDrtMCootniotrnolDPeatencetli®ng Door Control Console SECURITY✚® 3-Button Remote Control Models 3850 (1) 3850-267 (2) SECURITY✚...

3850 Elite Series Manual - Page 7

... the floor. 13. To avoid possible SERIOUS INJURY to garage door control. 11. Disable ALL locks and remove ALL ropes connected to garage door BEFORE installing opener to do so. 8. NEVER connect garage door opener to power source until instructed to avoid entanglement. 5. Install wall-mounted garage door control: • within sight of the garage door. • out of reach of children at...

3850 Elite Series Manual - Page 12

... SIZE To avoid possible SERIOUS INJURY from each bracket to provide rigid support. Measure the distance from a falling garage door opener, fasten it SECURELY to opener at this time. Operate the door manually. NOTE: DO NOT connect power to structural supports of the rail surface where the trolley slides with 5/16"-18x1-7/8" lag screws. 5. Hanging brackets...

3850 Elite Series Manual - Page 13

... and install top screw with a small flat-head screwdriver (Figure 1). DO NOT connect power and operate the opener at the lower/middle portion of the cover with care to motor unit. To prevent possible SERIOUS INJURY or DEATH from a closing garage door. For pre-wired installations (as in new home construction), it may damage the...

3850 Elite Series Manual - Page 14

... the battery or working around the battery compartment. 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. The use of short neck or speciality light bulbs may overheat the endpanel or light socket. INSTALLATION...

3850 Elite Series Manual - Page 15

... clear the tops of persons and obstructions. • NEVER use handle to pull door open or closed. To prevent possible SERIOUS INJURY or DEATH from the end of the rope to... 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 MUST ...

3850 Elite Series Manual - Page 16

... 16 Be sure power is NO HIGHER than 6" (15 cm) above garage floor. To prevent SERIOUS INJURY or DEATH from inside the garage so that the sending and receiving eyes face each location to avoid drilling extra holes in masonry if repositioning is closing , the door will stop and reverse to full open position, and the...

3850 Elite Series Manual - Page 17

...or wood blocks, adjust right and left assemblies at each door track, with the curved arms facing the door. Garage door track installation (preferred): • Slip the curved arms over...with Concrete Anchors (not provided) Indicator Light Sensor Bracket 17 Make sure all door hardware obstructions are cleared. INSTALLING THE BRACKETS Be sure power to the opener is recommended. They may be...

3850 Elite Series Manual - Page 18

...indicator light doesn't: • Check alignment. • Check for : • Electric power to wall and ceiling. • Strip 7/16" (11 mm) of insulation from both the sending and receiving eyes will glow regardless of wires. If the door is already open wire to the opener... slot on each other across the door. The opener lights will not close. Use wing nuts to fasten sensors...

3850 Elite Series Manual - Page 25

... small children) could be SERIOUSLY INJURED or KILLED by a closing garage door. Safety Reversing Sensor 25 Safety Reversing Sensor ADJUSTMENT STEP 3 Test the Safety Reversal System TEST • With the door fully open the door. • Place the opener carton in the down direction. If the opener closes the door when the safety reversing sensor is obstructed (and the sensors...

3850 Elite Series Manual - Page 26

... opening , the door will blink for 10 seconds until the light goes off, then on , then press and hold the light button for 10 seconds, until down until completely closed. Bulb power is activated (with the door control, the Outside Keylock, or Keyless Entry, if you activate them too soon, the door will not close . 5. ONLY activate garage door...

3850 Elite Series Manual - Page 29

.... • A solid orange LED indicates the battery is operating on battery power. • A flashing orange 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. • Re-connect the motor unit power cord back into the electrical...

3850 Elite Series Manual - Page 31

... 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 light bulbs..., repeat the steps above. 7. Trolley 4. This feature activates the light on when the power is restored, and is not lit properly: • Check battery connections. 8. Bell Wire...

3850 Elite Series Manual - Page 32

... terminals with self-diagnostic capabilities. Symptom: Sending indicator light glows steadily, receiving indicator light is not recognized. 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. Consult Diagnostic...

3850 Elite Series Manual - Page 34

Press and release the "learn indicator light will glow steadily for programming your opener to operate with your garage door opener, the large button is operated with your hand-held remote control. It has learned the code. Reprogram each remote or keyless entry you press the ...

3850 Elite Series Manual - Page 35

... by pressing the four buttons for your garage door opener. It has learned the code. Then press enter. The opener light will blink twice. OR 3. One Button Close: Opener can be changed by one button close is active. Press and release the "learn indicator light will blink twice when the one button close feature has been activated. Then press...

3850 Elite Series Manual - Page 38

... door openers against damage from lightning and power surges. 38 Surge Protector: The Garage Door Opener Surge Protector is open garage door manually from outside by disengaging trolley. 373P 41A5281 Extension Brackets: (Optional) For safety reversing sensor installation onto the wall or floor. 374LM 377LM SECURITY✚® Keyless Entry : Enables homeowner to open or closed...