LiftMaster 3850 Support Question
LiftMaster 3850 Support Question
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Question posted by jrch on November 26th, 2013
How To Replace Backup Battery Liftmaster Garage Door Opener Elite Series
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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...
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
... needed
During assembly, installation and adjustment of balance, call for hand tools as shown.
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 see if there is not sticking or binding:
1. Carpenter's Level (optional)
12 Tape Measure...
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...Rail Grease Carriage Bolt 1/4"-20x1/2" (2) Wing Nut 1/4"-20 (2)
5 Carton Inventory
Your garage door opener is packaged in the foam.
3850 Elite Series Manual - Page 6
...spring releases and snaps the nut ring against the trolley (Figure 2).
• Place a 7/16" open end wrench on the square end.
Washered Bolt 5/16"-18x1/2"
Rail Hole
USE ONLY THIS TYPE .... To avoid SERIOUS damage to opener, ONLY use any other bolts will cause serious damage to do not run the garage door opener until instructed to door opener. • Position belt over belt pulley.
3850 Elite Series Manual - Page 7
...three holes in garage door or opener mechanisms.
9. Please read the following warnings before proceeding to avoid entanglement.
5. Disable ALL locks and remove ALL ropes connected to garage door BEFORE installing opener to the installation section. NEVER connect garage door opener to power source until instructed to fingers from electrocution, disconnect ALL electric and battery power BEFORE...
3850 Elite Series Manual - Page 11
...
the correct mounting height
from ceiling.
11
The trolley can remain disconnected until Installation Step 12 is used to your door type as a support, raise the top of the motor unit. To prevent damage to garage door, rest garage door opener rail on 2x4 placed on the trolley release arm to -rail distance.
• Raise the...
3850 Elite Series Manual - Page 12
.... Drill 3/16" pilot holes in line
with rail grease. Grease the top and underside of the hanging bracket to opener at this time. Remove foam packaging. Measure the distance from a falling garage door opener, fasten it SECURELY to provide rigid support. Cut both pieces of the rail surface where the trolley slides with the...
3850 Elite Series Manual - Page 13
... tabs first and then snap cover in new home construction), it is recommended to each garage door opener. DO NOT connect power and operate the opener at a minimum height of 5 feet (1.5 m) where small children cannot reach, away from moving parts of door. • NEVER permit children to operate or play with a staple, creating a short or...
3850 Elite Series Manual - Page 14
...the release tabs on battery. • Verify the battery wires are seated in the channel. • Replace battery cover. Do not remove the lens.
• Install a 100 watt maximum light bulb in the fully open position. Light bulb size... to close the lens.
• Use A19, standard neck garage door opener bulbs for approximately 4-1/2 minutes when power is connected. Use ONLY incandescent.
3850 Elite Series Manual - Page 15
... possible SERIOUS INJURY or 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. Be sure the opener is grounded.
To make it is necessary to cut the rope, heat seal the cut...
3850 Elite Series Manual - Page 16
... the down direction. Be sure power is not connected to the receiving eye (with an amber indicator light) transmits an invisible light beam to the garage door opener BEFORE installing the safety reversing sensor. If it is necessary to avoid drilling extra holes in the path of wood at each other hardware) may...
3850 Elite Series Manual - Page 24
... contact with 1-1/2" (3.8 cm) high object (or 2x4 laid flat) on garage door will interfere with proper operation of force required to open and close the door fully, inspect the door to ensure that it , repeat Program the Travel Limits. If the garage door opener cannot open and close the door.
1. Push the purple button twice to enter into Force Adjustment...
3850 Elite Series Manual - Page 25
... SAFETY CHECK:
Test the Safety Reverse System after:
• Each adjustment of door arm length, limits, or force controls.
• Any repair to or adjustment of the garage door (including springs and hardware).
• Any repair to or buckling of the opener.
The garage door opener will flash. Without a properly installed safety reversing sensor, persons (particularly small...
3850 Elite Series Manual - Page 26
... , the safety reversal system MUST be programmed before use emergency release handle to adjust the operator properly may be tested every month. Garage door MUST reverse on the floor. Activate your garage door opener, it is clear of SEVERE INJURY or DEATH:
1.
READ AND FOLLOW ALL WARNINGS AND INSTRUCTIONS.
2. The sensor has no obstructions to...
3850 Elite Series Manual - Page 31
... garage door opener is accompanied by adjusting the outer nut 4 to Adjustment Step 2, Setting the force.
• Run the motor unit from the bolt, repeat the steps above.
7. My remotes will move away from the remote control or door control. My door reverses for the force and limit settings is not lit properly: • Check battery...
3850 Elite Series Manual - Page 32
... LED "Learn" Button
Installed Safety Reversing
Sensor
Your garage door opener is not recognized. If the sensor indicator lights do not glow steady.
• Inspect sensor wires for a short (staple in wire), replace as needed . • Disconnect wires at door control, touch wires together.
If motor unit activates, replace door control wires. The "Learn" button/diagnostic LED...
3850 Elite Series Manual - Page 34
... indicator light goes out (approximately 6 seconds). If light bulbs are instructions for 30 seconds.
2. PROGRAMMING
NOTICE: If this Security✚® garage door opener is factory programmed to circumvent that technical measure. Your garage door opener has already been programmed at the factory to operate with a non-rolling code remote control, the technical measure in the...
3850 Elite Series Manual - Page 35
... choice on the keypad. Press the four buttons for the temporary PIN, then press Enter.
OR
3. Test by pressing the four buttons for your garage door opener. One Button Close: Opener can be heard.
3. This feature has been activated at the factory. The keypad will be used up one person without using a ladder.
1. USING...
3850 Elite Series Manual - Page 38
... largest door of hours or entries.
370LM 378LM
915LM
CLOSED OPEN
Garage Door Monitor:
Security for a garage with NO access door. Laser Park Assist: Laser enables homeowners to the garage door opener. EverCharge® Standby Power System: Provides backup power to precisely park vehicles in the home with a remote.
975LM
373W
Designer Burled Walnut 3-Button Remote Control with model 3850...
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