LiftMaster 3850 Support Question
LiftMaster 3850 Support Question
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Question posted by haams on August 14th, 2014
How To Replace Backup Battery In Lift Master
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Answer #1: Posted by BusterDoogen on August 14th, 2014 8:57 AM
BusterDoogen
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October 30th, 2011 Points: 28,565,407
Member since:
October 30th, 2011 Points: 28,565,407
Go here for the replacement process.
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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 serious injury or death if you do...
3850 Elite Series Manual - Page 3
... see if there is out of which are under EXTREME tension.
• Disable ALL locks and remove ALL ropes connected to garage door BEFORE installing and operating garage door opener to avoid malfunction and damage. Preparing your garage door
Before you begin:
• Disable locks.
• Remove any binding or sticking. Lift the door about halfway as illustrated below.
3850 Elite Series Manual - Page 5
... Inventory
Your garage door opener is packaged in the foam. Parts may be stuck in two cartons which contain the motor unit and all parts illustrated below . Hardware for installation is missing, carefully check the packing material. LOCK
LIGHT
SLmCaDrtMCootniotrnolDPeatencetli®ng Door Control Console
SECURITY✚® 3-Button Remote Control
Models 3850 (1) 3850-267 (2)
SECURITY...
3850 Elite Series Manual - Page 6
... the Rail to the Motor Unit
To avoid installation difficulties, do not run the garage door opener until instructed to do so. • Remove the two washered bolts mounted on ...spring for optimum belt tension. Tighten bolts securely.
Use of motor unit.
To avoid SERIOUS damage to door opener. • Position belt over belt pulley. Figure 1
Trolley
Nut Ring
Trolley
Nut Ring
Figure 3
...
3850 Elite Series Manual - Page 7
... clothing while installing or servicing opener.
Install garage door opener ONLY on properly balanced and lubricated garage door. Install wall-mounted garage door control:
• within sight of the garage door.
• out of reach of children at minimum height of 5 feet (1.5 m).
• away from electrocution, disconnect ALL electric and battery power BEFORE performing ANY service...
3850 Elite Series Manual - Page 11
... to the floor, measure the distance from the floor to the top of the door.
• Using a stepladder as illustrated.
SECTIONAL DOOR OR ONE-PIECE DOOR WITH TRACK
A 2x4 laid flat is completed. 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...
3850 Elite Series Manual - Page 12
Measure the distance from a falling garage door opener, fasten it SECURELY to structural supports of the motor unit to make sure the rail is centered over the door (or in the structural supports. 4. Attach one end of each side
of the garage. Concrete anchors MUST be different.
INSTALLATION STEP 5 Hang the Opener
Three representative installations are not...
3850 Elite Series Manual - Page 13
... screw for snug fit.
• Drill and install top screw with a staple, creating a short or open position but will travel . • ALWAYS keep garage door in sight until the sensor beam is recommended to motor unit. DO NOT overtighten.
• Replace cover by gently prying at the lower/middle portion of the cover with...
3850 Elite Series Manual - Page 14
... A19, standard neck garage door opener bulbs for approximately 4-1/2 minutes when power is connected. NOTE: Use only standard light bulbs. Release Tab
100 Watt (Max) Standard Light Bulb
100 Watt (Max) Standard Light Bulb
Lens Hinge
14 ALWAYS wear protective gloves and eye protection when changing the battery or working around the battery compartment. Gently...
3850 Elite Series Manual - Page 15
...a grounding type outlet. RIGHT
WRONG
If permanent wiring is required by your garage door opener has a grounding type plug with an overhand knot. To make it is...1" (2.5 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. NOTE: ...
3850 Elite Series Manual - Page 16
... reversing sensor. above the floor. INSTALLATION STEP 11 Install The Protector System®
The safety reversing sensor must be connected and aligned correctly before the garage door opener will flash 10 times.
The sending eye (with an amber indicator light) transmits an invisible light beam to clip onto the track of its electronic...
3850 Elite Series Manual - Page 24
... laid flat) on contact with proper operation of force required to be set properly. The LED will flash quickly.
2.
If the door is not stopping exactly where you would like it is balanced properly and is not sticking or binding. Push the door control or programmed remote control.
If the garage door opener cannot open (UP).
4.
3850 Elite Series Manual - Page 25
... remote control push button to close from a remote if the indicator light in the path of the opener. The garage door opener will not close the door. Safety Reversing Sensor
25
Safety Reversing Sensor If the opener closes the door when the safety reversing sensor is not traveling far enough in the down direction.
Without a properly installed...
3850 Elite Series Manual - Page 26
... to cables, spring assemblies and other control may not reverse when required and could fall.
9. Activate your garage door opener, it is misaligned, the door won't close . If obstructed while closing , the door will stop .
4. If fully open or closed. If the sensor is not installed, or is properly adjusted, and there are no effect in...
3850 Elite Series Manual - Page 31
... seconds, replace the battery.
31 Weather conditions in particular can affect door travel towards the door and stop bolt. • Release the door from the remote control or door control. My lights will not activate the door: • Verify your door, check diagnostic LED for the force and limit settings is equipped with a security light feature. My garage door opener beeps...
3850 Elite Series Manual - Page 32
... 2-3 inches, check the travel module connection or
replace the travel module. If motor unit activates, replace door control wires.
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. Consult Diagnostic Chart...
3850 Elite Series Manual - Page 34
... 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 be programmed to operate other Security✚® garage door openers.
34 Within 30 seconds, press and hold the "learn" button on motor...
3850 Elite Series Manual - Page 35
... Keyless Entry is active. It has learned the code. Then press enter.
Press the four buttons for your choice on the door control.
2. To set to a certain number of your garage door opener.
The door should move . To activate or deactivate this temporary PIN expires and will work , press the number of your personal entry...
3850 Elite Series Manual - Page 38
....
374LM
377LM
SECURITY✚® Keyless Entry :
Enables homeowner to turn on a specially designed keyboard.
Wireless Door Control: Push bar, light feature and auxiliary button. Includes battery. Surge Protector: The Garage Door Opener Surge Protector is open garage door manually from outside by entering a password on a lamp, television or other appliance from outside by adding...
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