LiftMaster 3850 Support Question
LiftMaster 3850 Support Question
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Question posted by KSWcarp on June 29th, 2014
How To Disconnect Liftmaster 3850 Battery
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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
... 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 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.
If balanced, it should...
3850 Elite Series Manual - Page 5
... is also listed below . Carton Inventory
Your garage door opener is packaged in the foam. Parts may be stuck in two cartons which contain the motor unit and all parts illustrated below . LOCK
LIGHT
SLmCaDrtMCootniotrnolDPeatencetli®ng Door Control Console
SECURITY✚® 3-Button Remote Control
Models 3850 (1) 3850-267 (2)
SECURITY✚® Keyless Entry Model...
3850 Elite Series Manual - Page 6
...
Threaded
Nut
Shaft
Ring
Nut Ring Slots
Figure 2
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. Cut tape from rail,
chain and styrofoam. • REMOVE...
3850 Elite Series Manual - Page 7
...Disable ALL locks and remove ALL ropes connected to garage door BEFORE installing opener to garage door control.
11. 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 service or maintenance.
7 Upon...
3850 Elite Series Manual - Page 11
... to garage door, rest garage door opener rail on 2x4 placed on the trolley release arm to the floor, measure the distance from ceiling.
11
Header Bracket
Top of Motor Unit
Top of the door.
• Using a stepladder as illustrated. ENGAGED
Trolley Release Arm
RELEASED
ONE-PIECE DOOR WITHOUT TRACK
• With the door fully open and parallel to disconnect...
3850 Elite Series Manual - Page 12
... finished ceilings (Figure 2 and Figure 3), attach a sturdy metal bracket to make sure the rail is not centered above the door). 7. Measure the distance from a falling garage door opener, fasten it SECURELY to structural supports of the hanging bracket to a support with 5/16"-18x7/8"
hex bolts, lock washers and nuts. 6. Yours may be used ...
3850 Elite Series Manual - Page 13
...° F (-30° C) may be mounted to a single gang box (Figure 1). Strip 7/16" (11 mm) of insulation from one 398LM can be connected to each garage door opener. Use insulated staples to secure wire in tabpwusithhisnctraebwwdritivher tip
screwdriver tip
Antenna
Red White Grey Red White Grey
13 DO NOT pierce wire with the...
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
...) 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.
Secure with an overhand knot. and the ground wire to prevent unraveling. NOTE: If it fit outlet. The opener must be in the top of...
3850 Elite Series Manual - Page 16
... the receiving eye lens. Safety Reversing Sensor 6" (15 cm) max. Safety Reversing Sensor 6" (15 cm) max.
If an obstruction breaks the light beam while the door is necessary to the garage door opener BEFORE installing the safety reversing sensor. Be sure power is necessary.
To prevent SERIOUS INJURY or DEATH from inside the...
3850 Elite Series Manual - Page 24
... are made, the safety reversal system MUST be tested. If the garage door opener cannot open and close the door (DOWN). Without a properly installed safety reversal system, persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing garage door.
• Too much force on garage door will interfere with 1-1/2" (3.8 cm) high object (or 2x4 laid flat) on...
3850 Elite Series Manual - Page 25
... test adjustment.
• If the unit continues to the fact that the sensor is misaligned or obstructed). The garage door opener will flash.
See Figure 3, page 21.
• Repeat the test.
• When the door reverses on the obstruction, it is obstructed (and the sensors are made, the safety reversal system
MUST be SERIOUSLY...
3850 Elite Series Manual - Page 26
... of SEVERE INJURY or DEATH:
1. ALWAYS disconnect electric power to cables, spring assemblies and other hardware, ALL of which changes with garage door control push buttons or remote controls.
3. If closing , the door will turn on again.
26 If the sensor is not installed, or is complete.
The opener lights will reverse. when power is...
3850 Elite Series Manual - Page 31
... and aligned correctly before the garage door opener will not turn off of any binding problems.
• Refer to the Diagnostic Chart on when the safety reversing sensor beam has been obstructed. Using the Wall-Mounted Door Control, Light Feature.
6.
Refer to disengage. Having a Problem (Troubleshooting)
NOTE: Always unplug battery prior to Operation section; The...
3850 Elite Series Manual - Page 32
... LED "Learn" Button
Installed Safety Reversing
Sensor
Your garage door opener is dim or flashing. • Realign receiving eye sensor, clean lens and secure brackets. Consult Diagnostic Chart below.
1 FLASH
Safety reversing sensors wire open (broken or disconnected).
If motor unit activates, replace door control wires. Symptom: Sending indicator light glows steadily, receiving...
3850 Elite Series Manual - Page 34
... programming your hand-held remote* that you press the large push button. The learn indicator light will be programmed to operate other Security✚® garage door openers.
34 If light bulbs are instructions for 30 seconds.
2. To Erase All Codes From Motor Unit Memory
To deactivate any Security✚® 3-button remote...
3850 Elite Series Manual - Page 35
... steadily for 10 seconds. Then press and hold buttons 1 and 9 for 30 seconds. Release the # button.
2.
After a programmed number of hours or number of your garage door opener. OR
3. This feature has been activated at the factory. The keypad will blink once when the PIN has been learned.
The...
3850 Elite Series Manual - Page 38
... SECURITY✚® :
Includes visor clip.
990LM
SECURITY✚® 3-Button Remote Control : Includes visor clip. Also can be limited to protect LiftMaster® garage door openers against damage from lightning and power surges.
38
Wireless Door Control: Push bar, light feature and auxiliary button.
This temporary password can add a temporary password for the largest...
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