LiftMaster 3850 Support Question
LiftMaster 3850 Support Question
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Question posted by malakakenbman on October 12th, 2013
How Do I Replace The Backup Battery In The Liftmaster 3850 Garage Door Opener?
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Current Answers
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
...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...INTRODUCTION Safety Symbol and Signal Word Review
This garage door opener has been designed and tested to the ...
3850 Elite Series Manual - Page 3
... halfway as illustrated below.
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. Release the door. Sectional Door
One-Piece Door
Tools needed
During assembly, installation and adjustment of which are under EXTREME tension...
3850 Elite Series Manual - Page 5
...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 White & White/Red
Belt Pulley Bracket
Trolley
Optional EBvearttCehryarge® Stan(PdbacykPeodwSeerpSaryastteelym) (battery... Carton Inventory
Your garage door opener is packaged in ...
3850 Elite Series Manual - Page 6
...Square End
Trolley
Threaded
Nut
Shaft
Ring
Nut Ring Slots
Figure 2
To avoid SERIOUS damage to door opener. • Position belt over belt pulley.
Washered Bolt 5/16"-18x1/2"
Rail Hole
USE ONLY... 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 top ...
3850 Elite Series Manual - Page 7
...; away from electrocution, disconnect ALL electric and battery power BEFORE performing ANY service or maintenance.
7 An improperly balanced door may not reverse when required and could be made by a trained door systems technician BEFORE installing opener.
4. Disable ALL locks and remove ALL ropes connected to garage door BEFORE installing opener to the installation section. NEVER wear...
3850 Elite Series Manual - Page 11
...; If the top section or panel hits the trolley when you raise the door, pull down on the trolley release arm to garage door, rest garage door opener rail on 2x4 placed on top section of the door.
• Using a stepladder as illustrated. INSTALLATION STEP 4
Position the Opener
Follow instructions which apply to -rail distance.
• Raise the...
3850 Elite Series Manual - Page 12
... used if installing ANY brackets into masonry. Remove foam packaging. Cut both pieces of the motor unit to required lengths. 3. Measure the distance from a falling garage door opener, fasten it SECURELY to provide rigid support. Concrete anchors MUST be different. On finished ceilings (Figure 2 and Figure 3), attach a sturdy metal bracket to...
3850 Elite Series Manual - Page 13
... 7/16" (11 mm) of insulation from one 398LM can be connected to the R (1) (Figure 2).
2. DO NOT overtighten.
• Replace cover by color: white wire to the W (2) and white/red wire to each garage door opener. Connect bell wire to the quick-connect terminals on the motor unit: white to white and white/red to...
3850 Elite Series Manual - Page 14
... is in each socket. The lights will turn ON and remain lit for replacement.
NOTE: Use only standard light bulbs. To prevent possible OVERHEATING of short ...when changing the battery or working around the battery compartment. Then the lights will turn OFF.
• Reverse the procedure to close the lens.
• Use A19, standard neck garage door opener bulbs for approximately...
3850 Elite Series Manual - Page 15
... DEATH 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.
This plug will only fit into the outlet you could result in an open door falling rapidly and/or unexpectedly. • NEVER use handle...
3850 Elite Series Manual - Page 16
If an obstruction breaks the light beam while the door is not connected to the garage door opener BEFORE installing the safety reversing sensor. Be sure power is closing, the door will stop and reverse to a solid surface such as the sun never shines directly into the receiving eye lens.
Safety Reversing Sensor 6" (15 cm) max...
3850 Elite Series Manual - Page 24
... Program the Travel Limits.
The door will open and close the door fully, inspect the door to close (DOWN).
3. The door must travel through a complete cycle, up and down, in order for a binding or sticking garage door.
• After ANY adjustments are made, the safety reversal system MUST be set properly. If the garage door opener cannot open and close the...
3850 Elite Series Manual - Page 25
... reversing sensor, persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing garage door. • Safety reversal system MUST be tested.
The garage door opener will flash. The door must reverse on the floor, centered under the garage door.
• Operate the door in the down position. See Figure 3, page 21.
• Repeat the test.
• When...
3850 Elite Series Manual - Page 26
... with the safety reversing sensor correctly installed and aligned)
1. See Programming. Security✚® light feature: Lights will open door falling rapidly and/or unexpectedly, causing SEVERE INJURY or DEATH.
7. NEVER permit children to garage door opener BEFORE making ANY repairs or removing covers.
15. If the sensor is not installed, or is restored after...
3850 Elite Series Manual - Page 31
...every 30 seconds, replace the battery.
31 Refer to Programming. • If remote will move away from the opener by pulling the Emergency Release Rope. • Manually bring the door to Diagnostic Chart ... battery connections.
8. My door will not close and the light bulbs blink on my motor
unit: The safety reversing sensor must be connected and aligned correctly before the garage door opener...
3850 Elite Series Manual - Page 32
...
"Learn" Button LED or Diagnostic LED "Learn" Button
Installed Safety Reversing
Sensor
Your garage door opener is programmed with jumper wire. If motor unit activates, replace
door control. • If motor unit does not activate, disconnect door control wires from the door control. • Inspect door control/wires for the sensors.
See Adjustment section. • If the motor...
3850 Elite Series Manual - Page 34
...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...button remote or mini-remote can be programmed to operate other Security✚® garage door openers.
34
Press the PROG button again to confirm Learn Mode.
3. When the motor...
3850 Elite Series Manual - Page 35
... the four buttons for your garage door opener. It can be closed by visitors or service people with a temporary 4-digit PIN. To set the number of openings, remember that the test has... bulbs are not installed, two clicks will blink twice when the one opening.
The door should move . Release the button.
4. The door should move . The keypad will be heard.
2. Press and release ...
3850 Elite Series Manual - Page 38
... Assist: Laser enables homeowners to protect LiftMaster® garage door openers against damage from lightning and power surges.
38
Wireless Door Control: Push bar, light feature and auxiliary button. Includes battery.
This temporary password can add a temporary password for a garage with model 3850 only. Monitors up to 4 garage doors by disengaging trolley.
373P
41A5281
Extension...
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