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LiftMaster 3850 Support Question

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Question posted by bja3758 on July 24th, 2014

Garage Door Lights

Both side lights on opener unit stopped working at same time. Replaced bulbs but lights do not come on when opening garage door. Do not see anything in manual that covers this problem. Thanks.

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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 NOT...

3850 Elite Series Manual - Page 2

...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 and tested to your opener 30 Having a problem...; 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 5

...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... which contain the motor unit and all parts illustrated below . If anything is also listed below . Carton Inventory Your garage door opener is packaged in the foam.

3850 Elite Series Manual - Page 12

...5 Hang the Opener Three representative installations are not provided. 1. Fasten the opener to make sure the rail is centered over the door (or in the structural supports. 4. Operate the door manually. Figure 1 Measure...the structural support. 2. Measure the distance from a falling garage door opener, fasten it SECURELY to a support with 5/16"-18x7/8" hex bolts, lock washers and nuts...

3850 Elite Series Manual - Page 13

... properly adjusted and there are desired to each garage door opener. HARDWARE SHOWN ACTUAL SIZE Screw 6ABx1-1/4" (standard installation) Insulated Staples Screw 6-32x1" (pre-wired) Drywall Anchors Figure 1 REMOVE COVER REPLACE COVER To Replace Insert Top Tabs First PRE-WIRED INSTALLATION LOCK LIGHT LOCK LIGHT Push Bar Cover LOCK LIGHT 24 Volt Bell Wire Figure 2 2-Conductor Bell...

3850 Elite Series Manual - Page 14

... possible OVERHEATING of the endpanel or light socket: • DO NOT use short neck or specialty light bulbs. • DO NOT use of lens. To prevent damage to close the lens. • Use A19, standard neck garage door opener bulbs for approximately 4-1/2 minutes when power is in the channel. • Replace battery cover. Gently rotate lens back and downward...

3850 Elite Series Manual - Page 16

... indicator light). The units must be installed inside the garage. The mounting brackets are available if needed. This required safety device MUST NOT be disabled. • Install the safety reversing sensor so beam is closing, the door will stop and reverse to the garage door opener BEFORE installing the safety reversing sensor. No part of the garage door (or door tracks...

3850 Elite Series Manual - Page 17

...door hardware obstructions are cleared. INSTALLING THE BRACKETS Be sure power to the opener is recommended. Figure 1 Figure 2 Figure 3 DOOR TRACK MOUNT (RIGHT SIDE) Door Track Lip Indicator Light...Bracket) Sensor Bracket Indicator Lens Light Figure 4 FLOOR MOUNT (RIGHT SIDE) IGWnasarildalgee Lens Attach with concrete anchors as shown. Garage door track installation (preferred): &#...

3850 Elite Series Manual - Page 19

...; Use top and bottom or side to Step 13. Drill 5/16" holes through the door and secure bracket with your garage door manufacturer for an opener installation door reinforcement kit. Fiberglass, aluminum or lightweight steel garage doors WILL REQUIRE reinforcement BEFORE installation of Garage Door UP Figure 4 19 A vertical reinforcement brace should be long enough to be secured to...

3850 Elite Series Manual - Page 23

...open ) limit and begins closing garage door. • Incorrect adjustment of safety reversal system. • NEVER use force adjustments to reach the desired closed ) position. 6. Figure 1 Cover Protection Bolt 2-4" (5-10 cm) LED Black Button Purple Button Without a properly installed safety reversal system, persons (particularly small children) could be tested. Proceed to stop door...

3850 Elite Series Manual - Page 24

... required to open and close the door fully, inspect the door to ensure that it is balanced properly and is not stopping exactly where you would like it, repeat Program the Travel Limits. Push the purple button twice to be SERIOUSLY INJURED or KILLED by a closing garage door. • Too much force on garage door will open (UP). 4. Push...

3850 Elite Series Manual - Page 25

...; Press the remote control push button to close from a remote if the indicator light in either sensor is off (alerting you to open , place a 1-1/2" (3.8 cm) board (or a 2x4 laid flat) on the floor, centered under the garage door. • Operate the door in the down position. Without a properly installed safety reversal system, persons (particularly small...

3850 Elite Series Manual - Page 26

... when required and could fall. 9. ALWAYS disconnect electric power to garage door opener BEFORE making ANY repairs or removing covers. 15. SAVE THESE INSTRUCTIONS. Activate your garage door opener, it is broken. See Programming. If the door has been stopped in sight until the light goes off , press and hold the light button for 10 seconds until completely closed. If fully...

3850 Elite Series Manual - Page 29

... 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 outlet. • Verify that the battery is being charged. Check with the motor unit. After the electrical power has been restored, the battery will no longer...

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. If it is CLOSED. To disengage the lockout feature, pull...

3850 Elite Series Manual - Page 31

.... • Manually check door for no apparent reason after fully closing and touching the floor: Repeat safety reverse test after adjustments to the Diagnostic Chart on the following page. Trolley 4. Using the Wall-Mounted Door Control, Light Feature. 6. My garage door opener beeps: • A solid LED with beep, sounding approximately every 2 seconds, indicates the motor unit is...

3850 Elite Series Manual - Page 32

... travel module. See Adjustment section. • If the motor unit continues to be replaced. 32 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...

3850 Elite Series Manual - Page 34

...✚® 3-button remote or mini-remote can be heard. LOCK LIGHT LOCK LIGHT 4. Press and release the "learn indicator light will be circumvented. If light bulbs are now erased. Release the button when the motor unit lights blink. Press the button on the motor unit. Your garage door opener has already been programmed at the factory to use. 1. Reprogram each...

3850 Elite Series Manual - Page 38

... strip. Surge Protector: The Garage Door Opener Surge Protector is open garage door manually from outside by adding additional sensor modules. 485LM 395LM Remote Light Control : Enables homeowner to ...garage with model 3850 only. This temporary password can add a temporary password for the largest door of your garage door is designed to protect LiftMaster® garage door openers...

3850 Elite Series Manual - Page 40

... NOT COVER NON-DEFECT DAMAGE, DAMAGE CAUSED BY IMPROPER INSTALLATION, OPERATION OR CARE (INCLUDING, BUT NOT LIMITED TO ABUSE, MISUSE, FAILURE TO PROVIDE REASONABLE AND NECESSARY MAINTENANCE, UNAUTHORIZED REPAIRS OR ANY ALTERATIONS TO THIS PRODUCT), LABOR CHARGES FOR REINSTALLING A REPAIRED OR REPLACED UNIT, REPLACEMENT OF BATTERIES IN REMOTE CONTROL TRANSMITTERS AND LIGHT BULBS OR UNITS INSTALLED...