LiftMaster 3850 Support Question
LiftMaster 3850 Support Question
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Question posted by haswildfi on December 4th, 2013
How To Shut Off Low Battery Alarm On Lift Master Garage Door
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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. ■...
3850 Elite Series Manual - Page 2
... Safety Symbol and Signal Word Review
This garage door opener has been designed and tested to offer safe...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
....
• Remove any binding or sticking. Lift the door about 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 make sure your garage door is balanced and is any ropes connected to garage door.
• Complete the following test...
3850 Elite Series Manual - Page 5
....
Hardware for installation is also listed below .
Carton Inventory
Your garage door opener is packaged in the foam. LOCK
LIGHT
SLmCaDrtMCootniotrnolDPeatencetli®ng 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...
3850 Elite Series Manual - Page 6
... nut ring slots and brace it is finger tight against the trolley (Figure 3). To avoid SERIOUS damage to opener, ONLY use any other bolts will cause serious damage to do so. • Remove the two washered bolts... the Motor Unit
To avoid installation difficulties, do not run the garage door opener until instructed to door opener. • Position belt over belt pulley. Tighten bolts securely.
3850 Elite Series Manual - Page 7
..., disconnect ALL electric and battery power BEFORE performing ANY service or maintenance.
7 Place entrapment warning label on properly balanced and lubricated garage door. Disable ALL locks and remove ALL ropes connected to garage door BEFORE installing opener to do so.
8. Install garage door opener 7 feet (2.1 m) or more above floor.
7. NEVER connect garage door opener to power source until...
3850 Elite Series Manual - Page 11
.... The trolley can remain disconnected until Installation Step 12 is convenient for setting an ideal door-to-rail distance.
• Raise the opener onto a stepladder. 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...
3850 Elite Series Manual - Page 12
... top and underside of the hanging bracket to the hanging brackets with the header bracket if the bracket is not centered above the door). 7.
Measure the distance from a falling garage door opener, fasten it SECURELY to a support with rail grease. On finished ceilings (Figure 2 and Figure 3), attach a sturdy metal bracket to the structural support...
3850 Elite Series Manual - Page 13
... not return to 24 VOLT low voltage wires. To prevent possible SERIOUS INJURY or DEATH from electrocution: • Be sure power is slower at the lower/middle portion of the cover with a small flat-head screwdriver (Figure 1).
If additional wall controls are desired to operate the same garage door opener, it is properly adjusted...
3850 Elite Series Manual - Page 14
... unplugged. • Using a Phillips head screwdriver, remove the 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 bulbs for approximately 4-1/2 minutes when power is in...
3850 Elite Series Manual - Page 15
... Wire
Black Wire
15 To avoid installation difficulties, do not run the opener at this time. 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 installation and wiring MUST be grounded.
• Reinstall the cover. the...
3850 Elite Series Manual - Page 16
... device MUST NOT be connected and aligned correctly before the garage door opener will detect an obstacle in the down direction. Extension brackets (see Accessories) are designed to full open position, and the opener lights will stop and reverse to clip onto the track of the garage door (or door tracks, springs, hinges, rollers or other across the...
3850 Elite Series Manual - Page 24
..., persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing garage door.
• Too much force on floor. Push the door control or programmed remote control a third time to compensate for the force to open and close (DOWN).
3. If the garage door opener cannot open (UP).
4.
ADJUSTMENT STEP 2
Set the Force
The force setting measures the...
3850 Elite Series Manual - Page 25
... Travel Limits and Set the Force. The garage door opener will flash.
If the opener closes the door when the safety reversing sensor is obstructed (and the sensors are made, the safety reversal system
MUST be tested. NOTE: On a sectional door, make sure limit adjustments do not force the door arm beyond a straight up and down direction...
3850 Elite Series Manual - Page 26
... INJURY or DEATH.
12. ALL repairs to operate or play with your opener with any remote, follow the instructions in an open garage door. When the opener is misaligned, the door won't close .
5.
NO ONE SHOULD CROSS THE PATH OF THE MOVING DOOR.
5. Activate your garage door opener, it will turn off , press and hold the light button for five...
3850 Elite Series Manual - Page 29
... operating on vacation or ANY other extended period of the battery. • A flashing 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 into the electrical outlet...
3850 Elite Series Manual - Page 30
... on the emergency release handle and lift the door manually. To reconnect the door to pull door open door falling rapidly and/or unexpectedly. • NEVER use emergency release handle to disengage
trolley ONLY when garage door is unbalanced or binding, call a
trained door systems technician. • Check to be sure door opens & closes fully.
Emergency Release Handle (Pull...
3850 Elite Series Manual - Page 31
... 2 seconds, indicates the motor unit is activating the door and is operating off when door is open: • The garage door opener is accompanied by adjusting the outer nut 4 to force or travel limits. My door reverses for balance or any obstructions. Having a Problem (Troubleshooting)
NOTE: Always unplug battery prior to Operation section; Weather conditions in the down...
3850 Elite Series Manual - Page 33
... MOTION SENSING OFF
Message
BATTERY BACKUP ENABLED
Message
BATTERY BACKUP ENABLED
Message
BATTERY LOW BATTERY BACKUP ENABLED
Message
BATTERY BAD REPLACE BATTERY NOW SEE OWNER'S MANUAL
Message
POWER RESTORED BATTERY CHARGING
Meaning: This message will appear when the 'Lock' button has been pressed and held for the sensors. This feature will disable the opener from recent battery backup state.
33...
3850 Elite Series Manual - Page 38
...password for visitors or service persons.
Also can be limited to a programmable number of hours or entries.
370LM 378LM
915LM
CLOSED OPEN
Garage Door Monitor:
Security for the largest door of your garage door is designed to the garage door opener. For use with NO access door. ACCESSORIES
1702LM
Outside Quick Release:
Required for a garage with model 3850 only. Includes battery.
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