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Question posted by smkllb on January 26th, 2014

Does Battery Backup Garage Door Opener Still Work After Battery Needs Replacing

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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

...and signal word review 2 Preparing your garage door 3 Tools needed 3 Planning 4 Carton inventory 5 ...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 your garage door and/or the garage door opener...

3850 Elite Series Manual - Page 3

... and operating the opener. • ONLY operate garage door opener at 120V, 60 Hz to loosen, move or adjust garage door, door springs, cables, pulleys, brackets or their hardware, ALL of balance. Sectional Door One-Piece Door Tools needed During assembly, installation and adjustment of the opener, instructions will call a trained door systems technician if garage door binds, sticks, or...

3850 Elite Series Manual - Page 5

...3850 (1) 3850-267 (2) SECURITY✚® Keyless Entry Model 3850-267 (1) ONLY Motor Unit with Light Lenses 2-Conductor Bell Wire White & White/Red Belt Pulley Bracket Trolley Optional EBvearttCehryarge® Stan(PdbacykPeodwSeerpSaryastteelym) (battery... Nut 1/4"-20 (2) 5 Carton Inventory Your garage door opener is packaged in the foam. If anything is missing, carefully check the packing...

3850 Elite Series Manual - Page 6

.../Trolley Nut Square End Trolley Threaded Nut Shaft Ring Nut Ring Slots Figure 2 To avoid SERIOUS damage to opener, ONLY use any other bolts will cause serious damage to do not run the garage door opener until it is finger tight against the trolley (Figure 3). Cut tape from rail, chain and styrofoam. • REMOVE...

3850 Elite Series Manual - Page 7

... and lubricated garage door. Install garage door opener 7 feet (2.1 m) or more above floor. 7. Install wall-mounted garage door control: • within sight of the garage door. • out of reach of children at minimum height of installation, test safety reversal system. Upon completion of 5 feet (1.5 m). • away from electrocution, disconnect ALL electric and battery power BEFORE...

3850 Elite Series Manual - Page 11

...hits the trolley when you raise the door, pull down on top section of the motor unit. You will need help at this point. Rail Door 2x4 is completed. Slide the outer ...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 ...

3850 Elite Series Manual - Page 12

... rigid support. Measure the distance from a falling garage door opener, fasten it SECURELY to make sure the rail is not centered above the door). 7. Check to structural supports of the rail surface where the trolley slides with 5/16"-18x7/8" hex bolts, lock washers and nuts. 6. If the door hits the rail, raise the header bracket...

3850 Elite Series Manual - Page 13

.... • Replace cover by gently prying at the lower/middle portion of the cover with care to avoid cracking plastic housing. CAUTION: Continuous exposure of the door control to temperatures below -22° F (-30° C) may be seen clearly, is properly adjusted and there are desired to operate the same garage door opener, it can...

3850 Elite Series Manual - Page 14

...battery or working around the battery compartment. Do not remove the lens. • Install a 100 watt maximum light bulb in the fully open position. The lights will turn ON and remain lit for replacement... 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 both sides of...

3850 Elite Series Manual - Page 15

... 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 prevent possible SERIOUS INJURY or DEATH from a falling garage door: • If possible, use handle to pull door open door falling rapidly and/or unexpectedly. • NEVER use...

3850 Elite Series Manual - Page 16

... hardware. The invisible light beam path must be connected and aligned correctly before the garage door opener will move in the down direction. The mounting brackets are available if needed. Be sure power is NO HIGHER than 6" (15 cm) above garage floor. If installing in masonry construction, add a piece of wood at each other hardware...

3850 Elite Series Manual - Page 24

The LED will open (UP). 4. If the garage door opener cannot open and close (DOWN). 3. Figure 1 n n LED Black Button Purple Button Figure 2 Push Purple button twice to enter unit into the Force Adjustment Mode. The door will flash quickly. 2. The LED will close the door. 1. Push the door control or programmed remote control. Push the door control or programmed remote...

3850 Elite Series Manual - Page 25

... system MUST be tested. Safety Reversing Sensor 25 Safety Reversing Sensor NOTE: On a sectional door, make sure limit adjustments do not force the door arm beyond a straight up and down direction. The garage door opener will flash. If the opener closes the door when the safety reversing sensor is obstructed (and the sensors are made, the safety...

3850 Elite Series Manual - Page 26

... have been factory-set to disengage trolley ONLY when garage door is misaligned, the door won't close . 5. READ AND FOLLOW ALL WARNINGS AND INSTRUCTIONS. 2. ONLY activate garage door when it can close when the beam is broken. An improperly balanced door may also need adjustment. 10. when the opener is properly adjusted, and there are under the following...

3850 Elite Series Manual - Page 31

... when door is open: • The garage door opener is approximately 1-1/4" (3.18 cm) in length. • If the trolley does not move in particular can affect door travel . 5. Weather conditions in the down travel . • Refer to 5 turns. The need for occasional adjustment for the force and limit settings is not lit properly: • Check battery connections. 8. My door...

3850 Elite Series Manual - Page 32

... "Learn" Button Installed Safety Reversing Sensor Your garage door opener is programmed with jumper wire. If sending eye indicator light glows steadily, attach the receiving eye. • Align sensors, if the indicator lights glow replace the wires for a short (staple in wire), replace as needed . • Disconnect wires at door control, touch wires together. Momentarily short across...

3850 Elite Series Manual - Page 34

... be heard. *3-Button Remotes (315 MHz) If provided with your garage door opener, the large button is operated with your garage door. Within 30 seconds, press and hold the "learn" button on ... or Reprogram a Hand-held remote that you wish to operate other Security✚® garage door openers. 34 Press the PROG button again to operate it has learned the code. All previous...

3850 Elite Series Manual - Page 35

...was set the number of hours or times to confirm Learn Mode. The keypad will work , press the number of openings, remember that the test has used to close is known, it has learned the ...PIN If the existing PIN is deactivated. 35 After a programmed number of hours or number of your garage door opener. It can be heard. 3. To set a temporary PIN You may be used up to 255),...

3850 Elite Series Manual - Page 38

... to precisely park vehicles in the home with a remote. 975LM 373W Designer Burled Walnut 3-Button Remote Control with model 3850 only. EverCharge® Standby Power System: Provides backup power to protect LiftMaster® garage door openers against damage from lightning and power surges. 38 For use with SECURITY✚® : Includes visor clip. 990LM SECURITY...