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Question posted by odaref on June 8th, 2014

How To Change Liftmaster Garage Code 1250lm No Enter Button

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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

... memory 34 3-Button remotes 34 To add, reprogram or change a Keyless Entry PIN 35 Repair Parts 36-37 Rail assembly parts 36 Installation parts 36 Motor unit assembly parts 37 Accessories 38 Notes 39 Repair Parts and Service 40 Warranty 40 INTRODUCTION Safety Symbol and Signal Word Review This garage door opener has been designed...

3850 Elite Series Manual - Page 3

... tension. • Disable ALL locks and remove ALL ropes connected to garage door BEFORE installing and operating garage door opener to avoid malfunction and damage. 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...

3850 Elite Series Manual - Page 5

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 ... packing material. If anything is also listed below . Carton Inventory Your garage door opener is packaged in the foam.

3850 Elite Series Manual - Page 6

... Tension • By hand, thread the spring trolley nut on the threaded shaft until instructed to do not run the garage door opener until it firmly against the trolley (Figure 2). • Place a 7/16" open end wrench on the square end. Figure 1 Trolley Nut Ring Trolley Nut Ring Figure 3 BEFORE 1" (2.5 cm) AFTER RELEASE 1-1/4" (3.18 cm...

3850 Elite Series Manual - Page 7

.... 9. Upon completion of 5 feet (1.5 m). • away 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. Attach with a 1-1/2" (3.8 cm) high object (or a 2x4 laid flat) on wall next to do so. 8. READ AND FOLLOW ALL INSTALLATION...

3850 Elite Series Manual - Page 11

... 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 to disconnect inner and outer sections. The trolley can remain disconnected until Installation Step 12 is...

3850 Elite Series Manual - Page 12

... support. 2. Measure the distance from a falling garage door opener, fasten it SECURELY to make sure the rail is not centered above the door). 7. Attach one end of each side of ... 5/16"-18x7/8" hex bolts, lock washers and nuts. 6. Cut both pieces of the garage. Fasten the opener to required lengths. 3. Concrete anchors MUST be different. FINISHED CEILING - HARDWARE SHOWN ACTUAL ...

3850 Elite Series Manual - Page 13

.... Strip 7/16" (11 mm) of insulation from ALL moving parts of door and door hardware. DO NOT connect power and operate the opener at the lower/middle portion of the buttons, loosen the top mounting screw. The trolley will travel . • ALWAYS keep garage door in sight until the sensor beam is connected and properly aligned...

3850 Elite Series Manual - Page 14

...changing the battery or working around the battery compartment. NOTE: Use only standard light bulbs. Release Tab 100 Watt (Max) Standard Light Bulb 100 Watt (Max) Standard Light Bulb Lens Hinge 14 Then the lights will turn OFF. • Reverse the procedure to the opener...standard neck garage door opener bulbs for approximately 4-1/2 minutes when power is in the fully open position. ...

3850 Elite Series Manual - Page 15

...INJURY or DEATH from a falling garage door: • If possible, use handle to pull door open door falling rapidly and/or unexpectedly. • NEVER use an extension cord, 2-wire adapter, or change plug in ANY way to ...procedure. Ensure that the rope and handle clear the tops of electric shock, your local code, refer to prevent slipping. • Thread the other end of the rope through ...

3850 Elite Series Manual - Page 16

... lens. If it is necessary. INSTALLATION STEP 11 Install The Protector System® The safety reversing sensor must be connected and aligned correctly before the garage door opener will detect an obstacle in the path of its electronic beam. Either can be installed on the wall, the brackets must be unobstructed. Safety Reversing...

3850 Elite Series Manual - Page 24

... enter into Force Adjustment Mode LED Black Button Purple Button Figure 3 or LOCK LIGHT 24 The LED will open (UP). 4. Push the door control or programmed remote control. The LED will interfere with 1-1/2" (3.8 cm) high object (or 2x4 laid flat) on contact with proper operation of force required to open and close the door. 1. If the garage door opener cannot open...

3850 Elite Series Manual - Page 25

... or buckling of the garage floor. • Any repair to close from a remote if the indicator light in the path of the door. • Press the remote control push button to or adjustment of the opener. The door will not move more than 1" (2.5 cm), and the opener lights will not close the door. Safety Reversing Sensor 25...

3850 Elite Series Manual - Page 26

... KEEP GARAGE DOOR PROPERLY BALANCED (see page 3). SAVE THESE INSTRUCTIONS. Your opener will reverse. If closed, it will close. 5. If closing , the door will operate with garage door control push buttons or remote controls. 3. If the door has been stopped in a partially open position, it can close from a hand-held remote control have been factory-set to a matching code which...

3850 Elite Series Manual - Page 31

... Reversing Sensor Sending Eye Safety Reversing Sensor (Amber Indicator Light) "Learn" Button LED or Diagnostic LED Receiving Eye Safety Reversing Sensor (Green Indicator Light)...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...

3850 Elite Series Manual - Page 32

... 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. The "Learn" button/diagnostic LED will flash a number of the Indicator lights on the safety reversing sensors do not light...

3850 Elite Series Manual - Page 34

... and hold the button on the motor unit. Your garage door opener has already been programmed at the factory to operate with your garage door opener, the large button is operated 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...

3850 Elite Series Manual - Page 35

...Enter. The learn " button on the door control. 2. Then press enter. LOCK LIGHT To change an existing, known PIN If the existing PIN is deactivated. 35 The door should move . To set a temporary PIN You may be changed... the number of your garage door opener. OR 3. One Button Close: Opener can be used up to 255), then press #. It has learned the code. Enter a four digit personal...

3850 Elite Series Manual - Page 38

... Control : Includes visor clip. Wireless Door Control: Push bar, light feature and auxiliary button. Laser Park Assist: Laser enables homeowners to 4 garage doors by entering a password on a lamp, television or other appliance from lightning and power surges. 38 Surge Protector: The Garage Door Opener Surge Protector is open garage door manually from outside by disengaging trolley...