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LiftMaster 3850 Support Question

LiftMaster 3850 Support Question

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Question posted by ed2beng on November 18th, 2012

Had A Power Outage. After That The Garage Door Wouldnt Work Anymore.

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Answer #1: Posted by bengirlxD on November 19th, 2012 9:01 AM
This answer was accepted by the poster of the original question.
bengirlxD

Member since:
November 5th, 2012

Points: 6,395,085
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points
This should be due to a mess up in the circuitry. Check the cables and wires and make sure they are working correctlt. Take caution though.


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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 damage to your opener 30 Having a problem? (Troubleshooting 31 Diagnostic chart 32...
3850 Elite Series Manual - Page 3

... EXTREME tension. • 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 any ropes connected to garage door. • Complete the following test to avoid entanglement. Preparing your garage door Before you begin: • Disable locks. • Remove any binding or sticking...
3850 Elite Series Manual - Page 5

Carton Inventory Your garage door opener is packaged in the foam. If anything is also listed below . Hardware for installation is missing, carefully check the packing material. Parts may be stuck in two cartons which contain the motor unit and all parts illustrated below . LOCK LIGHT SLmCaDrtMCootniotrnolDPeatencetli®ng Door Control Console SECURITY✚®...
3850 Elite Series Manual - Page 6

... rail into one of motor unit. Use only these bolts! To avoid SERIOUS damage to do not run the garage door opener until instructed to opener, ONLY use any other bolts will cause serious damage to door opener. • Position belt over belt pulley. Rotate about 1/4 turn until it is finger tight against the trolley (Figure...
3850 Elite Series Manual - Page 7

.... 9. READ AND FOLLOW ALL INSTALLATION WARNINGS AND INSTRUCTIONS. 2. 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 the installation section. Place manual release/safety reverse test label in mounting plate. You have now finished...
3850 Elite Series Manual - Page 11

... than 4" (10 cm) above this point. Header Bracket Top of Motor Unit Top of Door 2x4 is convenient for setting an ideal door-to-rail distance. • Raise the opener onto a stepladder. 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. Rail...
3850 Elite Series Manual - Page 12

...rail grease. NOTE: DO NOT connect power to structural supports before installing the opener. Grease the top and underside of the garage. Drill 3/16" pilot holes in ...masonry. Measure the distance from a falling garage door opener, fasten it SECURELY to a support with the header bracket if the bracket is centered over the door (or in the structural supports. 4. Check...
3850 Elite Series Manual - Page 13

...Locate door control within sight of garage door, out of reach of children at a minimum height of 5 feet (1.5 m) and away from electrocution: • Be sure power is slower at a minimum height of the door ... be seen clearly, is properly adjusted and there are desired to operate the same garage door opener, it may damage the LCD screen. To prevent possible SERIOUS INJURY or DEATH from...
3850 Elite Series Manual - Page 14

...changing the battery or working around the battery compartment. Do not remove the lens. • Install a 100 watt maximum light bulb in the fully open position. To prevent ...To prevent damage 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 ...
3850 Elite Series Manual - Page 15

...rope length so the handle is required by your garage door opener has a grounding type plug with an overhand knot. Be sure the opener is necessary to cut the rope, heat seal... cm) 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. To...
3850 Elite Series Manual - Page 16

...power is closing garage door: • Correctly connect and align the safety reversing sensor. The units must be installed inside the garage. Extension brackets (see Accessories) are designed to clip onto the track of the garage door (or door... obstruction breaks the light beam while the door is not connected to the garage door opener BEFORE installing the safety reversing sensor. If...
3850 Elite Series Manual - Page 23

... force adjustments to compensate for your vehicle. 3. NOTE: Make sure the door opens high enough for a binding or sticking garage door. • After ANY adjustments are made, the safety reversal system MUST be sure fully 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

... Purple Button Figure 2 Push Purple button twice to be SERIOUSLY INJURED or KILLED by a closing garage door. • Too much force on floor. If the garage door opener cannot open and close the door fully, inspect the door to close (DOWN). 3. Push the door control or programmed remote control a third time to ensure that it , repeat Program the Travel...
3850 Elite Series Manual - Page 25

...; Any repair to or buckling of the opener. ADJUST • If the door stops on the floor, centered under the garage door. • Operate the door in the down position. 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 the path of the...
3850 Elite Series Manual - Page 26

... turned off as follows: With the opener lights off again. Failure to disengage trolley ONLY when garage door is activated. ALWAYS KEEP GARAGE DOOR PROPERLY BALANCED (see page 3). ALWAYS disconnect electric power to door travel is initially plugged in an open or closed , it will open , the door will reverse. See Programming. If the door has been stopped in SEVERE INJURY...
3850 Elite Series Manual - Page 29

...: LED is most visible 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 outlet. • Verify that the green LED is...
3850 Elite Series Manual - Page 31

... on my motor unit: The safety reversing sensor must be connected and aligned correctly before the garage door opener will not turn off of any binding problems. • Refer to a closed position. &#... beep sounding every 30 seconds, replace the battery. 31 This feature activates the light on when the power is restored, and is low. • If a red LED remains on when the safety reversing ...
3850 Elite Series Manual - Page 35

.... To set the number of times this temporary PIN will work, press the number of accesses, this temporary PIN will work, press the number of your choice on motor unit. To... 3. Then press enter. Press and release the "learn indicator light will glow steadily for your garage door opener. Within 30 seconds, enter a four digit personal identification number (PIN) of hours or times ...
3850 Elite Series Manual - Page 38

... bedside, or anywhere in the garage. Tells you if your home! Wireless Door Control: Push bar, light feature and auxiliary button. Enables homeowner to open or closed. ACCESSORIES 1702LM Outside Quick Release: Required for the largest door of hours or entries. 370LM 378LM 915LM CLOSED OPEN Garage Door Monitor: Security for a garage with model 3850 only. Laser Park Assist...

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