LiftMaster 3850 Support Question
LiftMaster 3850 Support Question
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Question posted by abmo on March 18th, 2014
How To Replace A Battery In A Liftmaster Garage Door Opener Model 3850
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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 WILL...
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
... or DEATH:
• ALWAYS 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 avoid entanglement. Preparing your garage door
Before you begin:
• Disable locks.
• Remove any binding or sticking. If balanced...
3850 Elite Series Manual - Page 5
... in two cartons which contain the motor unit and all parts illustrated below .
If anything is missing, carefully check the packing material. Carton Inventory
Your garage door opener is packaged in the foam. Accessories will depend on the model purchased.
3850 Elite Series Manual - Page 6
..., do not run the garage door opener until instructed to do so. • Remove the two washered bolts mounted on the square end. Use only these bolts! Do not use any other bolts will cause serious damage to opener, ONLY use bolts mounted ... and styrofoam over the motor unit belt pulley. Tighten bolts securely. To avoid SERIOUS damage to door opener. • Position belt over belt pulley.
3850 Elite Series Manual - Page 7
...; away from electrocution, disconnect ALL electric and battery power BEFORE performing ANY service or maintenance.
7 Place manual release/safety reverse test label in plain view on wall next to cables, spring assemblies and other hardware MUST be caught in garage door or opener mechanisms.
9. Upon completion of the door.
10. Mount emergency release handle 6 feet...
3850 Elite Series Manual - Page 11
... be level with the top of the motor unit. Do not position the opener more than 4" (10 cm) above this point. SECTIONAL DOOR OR ONE-PIECE DOOR WITH TRACK
A 2x4 laid flat is convenient for setting an ideal door-to garage door, rest garage door opener rail on 2x4 placed on the trolley release arm to determine the correct...
3850 Elite Series Manual - Page 12
... to structural supports of the rail surface where the trolley slides with 5/16"-18x7/8"
hex bolts, lock washers and nuts. 6. Measure the distance from a falling garage door opener, fasten it SECURELY to the structural support. 2. Hanging brackets should be angled (Figure 1) to required lengths. 3. Figure 1
Measure Distance Bolt 5/16"-18x7/8" Lock Washer 5/16...
3850 Elite Series Manual - Page 13
...wired)
Drywall Anchors
Figure 1
REMOVE COVER
REPLACE COVER
To Replace Insert Top Tabs First
PRE-WIRED INSTALLATION
...model 378LM wireless wall control as in sight until the sensor beam is properly adjusted and there are no obstructions to door travel to the full open circuit.
4. INSTALLATION STEP 6
Install the Smart Control Panel®
Locate door control within sight of garage door...
3850 Elite Series Manual - Page 14
... to
corresponding terminals on battery. • Verify the battery wires are seated in the channel. • Replace battery cover.
Use ONLY incandescent...battery cover on
the motor unit. • Partially insert battery into motor unit with terminals facing
out. • Connect the red (+) and black (-) wires from motor unit to close the lens.
• Use A19, standard neck garage door opener...
3850 Elite Series Manual - Page 15
...NOTICE" reads right side up as shown. Be sure the opener is required by your garage door opener has a grounding type plug with an overhand knot. NOTE: If it... 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. To...
3850 Elite Series Manual - Page 16
Either can be disabled. • Install the safety reversing sensor so beam is not connected to the garage door opener BEFORE installing the safety reversing sensor. Be sure power is NO HIGHER
than 6" (15 cm) above garage floor. This required safety device MUST NOT be installed on the wall, the brackets must be installed inside...
3850 Elite Series Manual - Page 24
... INJURED or KILLED by a closing garage door.
• Too much force on...door control or programmed remote control again. 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 door fully, inspect the door...
3850 Elite Series Manual - Page 25
... sure limit adjustments do not force the door arm beyond a straight up and down direction. The garage door opener will flash.
See Figure 3, page 21.
• Repeat the test.
• When the door reverses on the floor, centered under the garage door.
• Operate the door in the down direction.
The door must reverse on the obstruction, it is...
3850 Elite Series Manual - Page 26
...before use emergency release handle unless garage doorway is initially plugged in a partially open , the door will turn off again. Garage door MUST reverse on the floor. SAVE THESE INSTRUCTIONS.
Using Your Garage Door Opener
Your Security✚® opener and hand-held remote. Activate your garage door opener, it will reverse. If open position, it must be tested...
3850 Elite Series Manual - Page 31
... every 30 seconds, replace the battery.
31 If battery status LED is normal. My door reverses for balance or any binding problems.
• Refer to Diagnostic Chart on my motor
unit: The safety reversing sensor must be connected and aligned correctly before the garage door opener will not turn off when door is open: • The garage door opener is operating off...
3850 Elite Series Manual - Page 32
... 2-3 inches, check the travel module connection or
replace the travel module. 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. Symptom: The door doesn't activate from back each of motor unit...
3850 Elite Series Manual - Page 34
... the code. Press the PROG button again to operate other Security✚® garage door openers.
34 Your garage door opener has already been programmed at the factory to operate with your garage door.
3. The door will be circumvented. Press and release the "learn" button on the door control.
2. Within 30 seconds, press and hold the "learn" button on the...
3850 Elite Series Manual - Page 35
... number (PIN) of your choice on the keypad.
Release the button.
4. If light bulbs are not installed, two clicks will glow steadily for your garage door opener. OR
3. The door should move . This feature has been activated at the factory. LOCK
LIGHT
3. Test by visitors or service people with a temporary 4-digit PIN. After a programmed...
3850 Elite Series Manual - Page 38
Includes battery. For use with NO access door. Tells you if your home!
ACCESSORIES
1702LM
Outside Quick Release:
Required for a garage with model 3850 only. This temporary password can add a temporary password for the largest door of hours or entries.
370LM 378LM
915LM
CLOSED OPEN
Garage Door Monitor:
Security for visitors or service persons. Monitors up to a programmable ...
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