LiftMaster 3850 Support Question
LiftMaster 3850 Support Question
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Question posted by namrsan on January 14th, 2014
How To Replace Battery In Liftmaster Overhead Garage Door System
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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
...INTRODUCTION Safety Symbol and Signal Word Review
This garage door opener has been designed and tested to offer ...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 adjustment 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 make sure your garage door is balanced and is not sticking or binding:
1. Preparing your garage door
Before you begin:
• Disable locks.
• Remove any binding or sticking. Release the...
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. Accessories will depend on the model purchased.
3850 Elite Series Manual - Page 6
...; Insert a screwdriver tip into the motor unit. To avoid SERIOUS damage to opener, ONLY use any other bolts will cause serious damage to door opener. • Position belt over belt pulley.
Figure 1
Trolley
Nut Ring
Trolley
Nut...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 the ...
3850 Elite Series Manual - Page 7
... to avoid entanglement.
5. NEVER connect garage door opener to power source until instructed to fingers from moving parts of garage door.
12. 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...
3850 Elite Series Manual - Page 11
... determine the correct mounting height from ceiling.
The trolley can remain disconnected until Installation Step 12 is convenient for setting an ideal door-to determine
the correct mounting height
from ceiling.
11
To prevent damage to garage door, rest garage door opener rail on 2x4 placed on the trolley release arm to the top of the...
3850 Elite Series Manual - Page 12
... in line
with
5/16"-18x1-7/8" lag screws. 5.
Hanging brackets should be angled (Figure 1) to the structural support. 2. Measure the distance from a falling garage door opener, fasten it SECURELY to a support with the header bracket if the bracket is not centered above the door). 7. Fasten the opener to the hanging brackets with rail grease. Operate the...
3850 Elite Series Manual - Page 13
...wire up wall and across ceiling to each garage door opener. CAUTION: Continuous exposure of closing garage door: • Install door control within sight of door, at a minimum height of 5 feet ...open circuit.
4. HARDWARE SHOWN ACTUAL SIZE
Screw 6ABx1-1/4" (standard installation)
Insulated Staples
Screw 6-32x1" (pre-wired)
Drywall Anchors
Figure 1
REMOVE COVER
REPLACE COVER
To Replace...
3850 Elite Series Manual - Page 14
...; Reverse the procedure to close the lens.
• Use A19, standard neck garage door opener bulbs for approximately 4-1/2 minutes when power is connected.
To prevent damage to
corresponding terminals on battery. • Verify the battery wires are seated in the channel. • Replace battery cover. To prevent possible OVERHEATING of the endpanel or light socket: • DO...
3850 Elite Series Manual - Page 15
... Be sure the opener is required by your garage door opener has a grounding type plug with a third grounding pin. RIGHT
WRONG
If permanent wiring is grounded. The opener must be in compliance... electrocution or fire:
• Disconnect ALL electric and battery power BEFORE performing ANY service or maintenance.
• Garage door installation and wiring MUST be grounded.
• Reinstall ...
3850 Elite Series Manual - Page 16
... SENSOR
When properly connected and aligned, the sensor will detect an obstacle in the down direction. Be sure power is closing, the door will stop and reverse to the garage door opener BEFORE installing the safety reversing sensor.
The invisible light beam path must be installed on the wall, the brackets must be securely...
3850 Elite Series Manual - Page 23
...)
LED Black Button Purple Button
Without a properly installed safety reversal system, persons (particularly small children) could be tested.
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 SERIOUSLY INJURED or KILLED by using the black and purple...
3850 Elite Series Manual - Page 24
... you would like it is balanced properly and is not sticking or binding. Door MUST reverse on floor.
If the garage door opener cannot open and close the door.
1. 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...
3850 Elite Series Manual - Page 25
... on the obstruction, it is not traveling far enough in the path of the opener.
Without a properly installed safety reversal system, persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing garage door. The garage door opener will flash. Safety Reversing Sensor
25
Safety Reversing Sensor
IMPORTANT SAFETY CHECK:
Test the Safety Reverse System...
3850 Elite Series Manual - Page 26
... operate with 1-1/2" (3.8 cm) high object (or a 2x4 laid flat) on when someone walks through the open , the door will also turn off again. Activate your garage door opener, it is misaligned, the door won't close . When the opener is CLOSED. If open garage door. They will reverse. Bulb power is activated. To restore this feature may also need adjustment.
10...
3850 Elite Series Manual - Page 29
... electrical outlet.
• A solid orange LED indicates the battery is operating on battery power.
• A flashing orange LED 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...
3850 Elite Series Manual - Page 31
... correctly before the garage door opener will still not activate your Smart Control Panel® does not display "Lock Mode." Trolley
4. If battery status LED is ... seconds, replace the battery.
31 My door reverses for balance or any obstructions. Decrease down direction. • Verify the safety reversing sensors are properly installed,
aligned and free of the battery. •...
3850 Elite Series Manual - Page 32
... from the door control. • Inspect door control/wires for a short (staple in wire), replace as needed . • Disconnect wires at door control, touch wires together.
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...
3850 Elite Series Manual - Page 38
....
485LM
395LM
Remote Light Control :
Enables homeowner to protect LiftMaster® garage door openers against damage from car, bedside, or anywhere in the garage. 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...
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