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LiftMaster 3850 Support Question

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Question posted by amtaji on February 4th, 2014

How To Disconnect Garage Door Battery

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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

... the 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 control battery 28 EverCharge® Standby Power System (optional 29 To open the door manually 30 Care of damage to offer safe service provided it...

3850 Elite Series Manual - Page 3

...; Disable ALL locks and remove ALL ropes connected to garage door BEFORE installing and operating garage door opener to make sure your garage door is balanced and is not sticking or binding: 1. 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...

3850 Elite Series Manual - Page 5

... contain the motor unit and all parts illustrated below . Carton Inventory Your garage door opener is also listed 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 Lenses 2-Conductor Bell Wire White...

3850 Elite Series Manual - Page 6

... Nut Shaft Ring Nut Ring Slots Figure 2 ASSEMBLY STEP 1 Attach the 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. Use of motor unit. • Align rail and styrofoam over the motor unit belt pulley. Rotate about...

3850 Elite Series Manual - Page 7

... reverse on contact with the three holes in plain view on properly balanced and lubricated garage door. Install garage door opener ONLY on inside of installation, test safety reversal system. Install wall-mounted garage door control: • within sight of the garage door. • out of reach of children at minimum height of SEVERE INJURY or DEATH: 1. An improperly...

3850 Elite Series Manual - Page 11

... on top section of Door 2x4 is used to your door type as a support, raise the top of the motor unit. To prevent damage to determine the correct mounting height from ceiling. Rail Door 2x4 is used 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

... with 5/16"-18x1-7/8" lag screws. 5. This bracket and fastening hardware are shown. Measure the distance from a falling garage door opener, fasten it SECURELY to provide rigid support. Fasten the opener to a support with rail grease. FINISHED CEILING - Remove the 2x4. If the door hits the rail, raise the header bracket. 8. Remove foam packaging. Operate the...

3850 Elite Series Manual - Page 13

... Button DoDooroCroCnotnrotrlol CoCnonnenceticotniosns StriSptwripirew7ir/e167"/1(61"1 mm) 7/167"/(1161" (m11mm) m) To insTeortreolrearseeleaosreinwsierret,wpiurseh, in sight until the sensor beam is recommended to each garage door opener. Adjust screw for snug fit. • Drill and install top screw with 6AB x 1-1/4" self-tapping screws (drywall installation) or 6-32 x 1" machine screws...

3850 Elite Series Manual - Page 14

.... • Reverse the procedure to close the lens. • Use A19, standard neck garage door opener bulbs for approximately 4-1/2 minutes when power is unplugged. • Using a Phillips head screwdriver, remove the battery cover on the motor unit. • Partially insert battery into motor unit with terminals facing out. • Connect the red (+) and black (-) wires...

3850 Elite Series Manual - Page 15

...electric shock, your local code, refer to disengage trolley ONLY when garage door is CLOSED. The opener must be in compliance with a third grounding pin. Overhand Knot ...from electrocution 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...

3850 Elite Series Manual - Page 16

... reversing sensor. Be sure power is closing . If it is necessary. No part of sectional garage doors without additional hardware. The units must be connected and aligned correctly before the garage door opener will move in the down direction. above garage floor. The mounting brackets are available if needed. To prevent SERIOUS INJURY or DEATH from...

3850 Elite Series Manual - Page 23

... programmed remote control. Push and hold the black button until the door reaches the desired DOWN (closed position. 7. Black moves the door UP (open) and purple moves the door DOWN (close ) limit and the door should open ) limit and begins closing garage door. • Incorrect adjustment of garage door travel limits will interfere with 1-1/2" (3.8 cm) high object (or 2x4 laid...

3850 Elite Series Manual - Page 24

... or programmed remote control. The door will flash quickly. 2. If the garage door opener cannot open and close (DOWN). 3. Door MUST reverse on contact with 1-1/2" (3.8 cm) high object (or 2x4 laid flat) on garage door will interfere with proper operation of force required to open (UP). 4. ADJUSTMENT STEP 2 Set the Force The force setting measures the amount of safety...

3850 Elite Series Manual - Page 25

... repair to or buckling of the garage floor. • Any repair to or adjustment of the door. • Press the remote control push button to close the door. The garage door opener will flash. ADJUSTMENT STEP 3 Test the Safety Reversal System TEST • With the door fully open the door. • Place the opener carton in either sensor is off...

3850 Elite Series Manual - Page 26

... cause SEVERE INJURY or DEATH. 12. However, you activate them too soon, the door will close . 5. ALWAYS keep remote controls out of reach of SEVERE INJURY or DEATH: 1. Activate your garage door opener, it will reverse. 3. ALWAYS disconnect electric power to garage door opener BEFORE making ANY repairs or removing covers. 15. when power is initially plugged in...

3850 Elite Series Manual - Page 30

... Arm NOTICE The lockout feature prevents the trolley from a falling garage door: • If possible, use handle to pull door open door falling rapidly and/or unexpectedly. • NEVER use emergency release handle unless garage doorway is clear of Your Opener MAINTENANCE SCHEDULE Once a Month • Manually operate door. Care of persons and obstructions. • NEVER use emergency...

3850 Elite Series Manual - Page 31

... sensors are properly installed, aligned and free of the battery. • A flashing LED with a security light feature. 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 . The trolley should travel...

3850 Elite Series Manual - Page 32

... motor unit does not activate, disconnect door control wires from motor unit. Symptom: Door travels 2-3 inches and stops. • Reprogram limits and forces. 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...

3850 Elite Series Manual - Page 38

... to turn on a specially designed keyboard. For use with NO access door. Includes battery. ACCESSORIES 1702LM Outside Quick Release: Required for a garage with model 3850 only. Surge Protector: The Garage Door Opener Surge Protector is designed to protect LiftMaster® garage door openers against damage from outside by adding additional sensor modules. 485LM 395LM Remote...