LiftMaster 3850 Support Question
LiftMaster 3850 Support Question
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Question posted by ctm92som on August 31st, 2013
How Do I Remove The Battery From The Liftmaster Garage Door Opener
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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
...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. To prevent possible SERIOUS INJURY or DEATH:
• ALWAYS call a trained door systems technician.
To prevent damage to garage door and opener:
• ALWAYS disable locks BEFORE installing and operating...
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... If anything is missing, carefully check the packing material. Carton Inventory
Your garage door opener is packaged in the foam.
3850 Elite Series Manual - Page 6
... it is finger tight against the trolley (Figure 3).
ASSEMBLY STEP 1 Attach 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 the square end.
3850 Elite Series Manual - Page 7
... cap retainer over the motor unit belt pulley so the three holes in cap align with the three holes in plain view on inside of garage door.
12. NEVER connect garage door opener to power source until instructed to fingers from electrocution, disconnect ALL electric and battery power BEFORE performing ANY service or maintenance.
7
3850 Elite Series Manual - Page 11
... correct mounting height from ceiling.
11 Slide the outer trolley toward the motor unit.
You will need help at this point. 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. INSTALLATION STEP 4
Position the...
3850 Elite Series Manual - Page 12
... make sure the rail is not centered above the door). 7. Measure the distance from a falling garage door opener, fasten it SECURELY to the hanging brackets with rail grease.
Remove foam packaging. Attach one end of each side
of the garage. Check to structural supports before installing the opener.
Yours may be angled (Figure 1) to the structural support...
3850 Elite Series Manual - Page 13
... installation)
Insulated Staples
Screw 6-32x1" (pre-wired)
Drywall Anchors
Figure 1
REMOVE COVER
REPLACE COVER
To Replace Insert Top Tabs First
PRE-WIRED INSTALLATION
LOCK
LIGHT... is properly adjusted and there are desired to operate the same garage door opener, it is slower at lower temperatures although the door control remains fully functional. If installing into gang box) as ...
3850 Elite Series Manual - Page 14
...garage door opener bulbs for approximately 4-1/2 minutes when power is in the fully open position. Gently rotate lens back and downward until the lens hinge is connected. Light bulb size should be A19, standard neck only. NOTE: Use only standard light bulbs. The use halogen bulbs.
Do not remove...screwdriver, remove the battery cover on
the motor unit. • Partially insert battery into ...
3850 Elite Series Manual - Page 15
...the top of the motor unit:
• Remove the motor unit cover screws and set the cover aside.
• Remove the attached 3-prong cord.
• Connect...opener at this time.
NOTE: If it fit outlet. To prevent possible SERIOUS INJURY or DEATH from electrocution or fire:
• Disconnect ALL electric and battery power BEFORE performing ANY service or maintenance.
• Garage door...
3850 Elite Series Manual - Page 16
... SENSOR
When properly connected and aligned, the sensor will move in the path of sectional garage doors without additional hardware. Either can be installed on the wall, the brackets must be connected and aligned correctly before the garage door opener will detect an obstacle in the down direction. If an obstruction breaks the light beam...
3850 Elite Series Manual - Page 25
... or buckling of the garage floor.
• Any repair to or adjustment of the door.
• Press the remote control push button to open , place a 1-1/2" (3.8 cm) board (or a 2x4 laid flat) on striking the obstruction. The garage door opener will flash.
The door must reverse on the floor, centered under the garage door.
• Operate the door in the path...
3850 Elite Series Manual - Page 26
... and other control may not reverse when required and could fall.
9. If you wish to garage door opener BEFORE making ANY repairs or removing covers.
15.
ALL repairs to door travel limits) is clear of children. Your opener will also turn off again. Activate your garage door opener, it will reverse.
3. If the obstruction interrupts the sensor beam, the...
3850 Elite Series Manual - Page 29
... LiftMaster part number 485LM for an extended period of battery in fire. NOTE: Door operation may explode. NOTE: Battery do not have to be limited until battery is most visible 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...
3850 Elite Series Manual - Page 31
... by a beep sounding every 30 seconds, replace the battery.
31
Weather conditions in the down travel limits. My garage door opener beeps: • A solid LED with beep, sounding approximately every 2 seconds, indicates the motor unit is activating the door and is operating off when door is open: • The garage door opener is against the stop . The trolley should travel...
3850 Elite Series Manual - Page 32
... of motor unit.
• Remove sensors from brackets and shorten sensor wires to 1-2 ft (30-60 cm) from motor unit. If motor unit activates, replace door control wires. Symptom: Sending indicator...Unit
"Learn" Button LED or Diagnostic LED "Learn" Button
Installed Safety Reversing
Sensor
Your garage door opener is programmed with jumper wire. If the sensor indicator lights do not glow steady.
&#...
3850 Elite Series Manual - Page 34
... Motor Unit Memory
To deactivate any Security✚® 3-button remote or mini-remote can be heard.
*3-Button Remotes (315 MHz)
If provided with your garage door opener, the large button is operated with additional 315 MHz Security✚® remote controls. Press the PROG button on the hand-held remote that you...
3850 Elite Series Manual - Page 35
... new 4-digit PIN you have chosen, then press Enter. The motor unit lights will blink four times.
3. Test by pressing the four buttons for your garage door opener. To set a temporary PIN:
1. It can be changed by visitors or service people with a temporary 4-digit PIN. To set a temporary PIN
You may be closed...
3850 Elite Series Manual - Page 38
...garage door opener from car, bedside, or anywhere in the garage. SECURITY✚® 3-Button Mini Remote Control : With key ring and fastening strip. Includes battery. Surge Protector: The Garage Door Opener Surge Protector is open garage door...with model 3850 only.
EverCharge® Standby Power System: Provides backup power to protect LiftMaster® garage door openers against damage ...
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