LiftMaster 3850 Support Question
LiftMaster 3850 Support Question
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Question posted by rkthe on June 24th, 2014
Liftmaster 3850 Won't Close All The Way
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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
...the following pages, they will alert you to the possibility of your garage door and/or the garage door opener if you do not comply with the cautionary statements that accompany them carefully...Protector System 25
Operation
26-33
Operation safety instructions 26
Using garage door opener 26
Using the wall-mounted door control 27
Using the remote control 28
Troubleshooting 28
The ...
3850 Elite Series Manual - Page 3
..., sticks, or is out 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
Before you begin:
• Disable locks.
• Remove any binding or sticking.
Carpenter's Level (optional)
12 Tape Measure
Pencil
Stepladder
Drill Bits...
3850 Elite Series Manual - Page 5
... model purchased. 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...Rail Grease Carriage Bolt 1/4"-20x1/2" (2) Wing Nut 1/4"-20 (2)
5 Carton Inventory
Your garage door opener is packaged in the foam.
3850 Elite Series Manual - Page 6
...the Rail to the Motor Unit
To avoid installation difficulties, do not run the garage door opener until instructed to door opener. • Position belt over belt pulley.
Washered Bolt 5/16"-18x1/2"
Rail Hole...on the threaded shaft until it firmly against the trolley (Figure 2).
• Place a 7/16" open end wrench on top of any tools.
• Insert a screwdriver tip into the motor unit....
3850 Elite Series Manual - Page 7
... the motor unit belt pulley so the three holes in cap align with a 1-1/2" (3.8 cm) high object (or a 2x4 laid flat) on the floor.
13. Install garage door opener ONLY on wall next to fingers from electrocution, disconnect ALL electric and battery power BEFORE performing ANY service or maintenance.
7 NEVER connect...
3850 Elite Series Manual - Page 11
... way and place a 2x4 laid flat on the top section beneath the rail.
• If the top section or panel hits the trolley when you raise the door, pull down on top section of Door
2x4 is convenient for setting an ideal door-to disconnect inner and outer sections. To prevent damage to garage door, rest garage door opener...
3850 Elite Series Manual - Page 12
... should be used if installing ANY brackets into masonry. This bracket and fastening hardware are shown. Measure the distance from a falling garage door opener, fasten it SECURELY to structural supports of the motor unit to provide rigid support. Fasten the opener to a support with 5/16"-18x7/8"
hex bolts, lock washers and nuts. 6. Operate the...
3850 Elite Series Manual - Page 13
... and slide down to operate the same garage door opener, it is slower at lower temperatures although the door control remains fully functional. NEVER permit anyone to cross path of closing garage door: • Install door control within sight of door, at this time.
To prevent possible SERIOUS INJURY or DEATH from a closing garage door. If additional wall controls are no obstructions...
3850 Elite Series Manual - Page 14
... or speciality light bulbs may overheat the endpanel or light socket. Then the lights will turn OFF.
• Reverse the procedure to close the lens.
• Use A19, standard neck garage door opener bulbs for approximately 4-1/2 minutes when power is in each socket. Use ONLY incandescent. Do not remove the lens.
• Install a 100...
3850 Elite Series Manual - Page 15
.... To avoid installation difficulties, do not run the opener at this time.
If the plug doesn't fit into a grounding type outlet. Ensure that the rope and handle clear the tops of electric shock, your local code, refer to disengage
trolley ONLY when garage door is CLOSED. To reduce the risk of all vehicles to...
3850 Elite Series Manual - Page 16
... times. If installing in the down direction. The invisible light beam path must be connected and aligned correctly before the garage door opener will detect an obstacle in masonry if repositioning is closing , the door will stop and reverse to a solid surface such as the sun never shines directly into the receiving eye lens. The...
3850 Elite Series Manual - Page 24
... stop flashing when the force has been programmed. The LED will flash quickly.
2. If the garage door opener cannot open and close the door (DOWN).
Push the purple button twice to 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 contact with proper...
3850 Elite Series Manual - Page 25
..., it is off (alerting you to fail the Safety Reverse Test, call for a trained door systems technician. 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. The door must reverse on the floor.
1-1/2" (3.8 cm) board (or a 2x4 laid flat)
ADJUSTMENT STEP...
3850 Elite Series Manual - Page 26
... provide constant light when the Light feature on when someone walks through the open door falling rapidly and/or unexpectedly, causing SEVERE INJURY or DEATH.
7. NEVER permit children to pull garage door open .
2. If closing , the door will reverse.
3.
ALWAYS keep garage door in an open garage door. To restore this feature may not reverse when required and could result in...
3850 Elite Series Manual - Page 29
...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... ALL electric and battery power BEFORE
performing ANY service or maintenance. • Use ONLY LiftMaster part number 485LM for disposal instructions.
The motor unit's lights will recharge.
This is ...
3850 Elite Series Manual - Page 31
....
• Refer to force or travel limits. Using the Wall-Mounted Door Control, Light Feature.
6. My door will not close and the light bulbs blink on my motor
unit: The safety reversing sensor must be connected and aligned correctly before the garage door opener will still not activate your Smart Control Panel® does not display...
3850 Elite Series Manual - Page 34
... large button is operated with additional 315 MHz Security✚® remote controls. The door will be programmed to operate other Security✚® garage door openers.
34
If light bulbs are not installed, two clicks will open and close when you wish to use.
1. Press the PROG button on the hand-held remote control. Release...
3850 Elite Series Manual - Page 35
... Enter a four digit personal identification number (PIN) of your garage door opener. LOCK
LIGHT
To change an existing, known PIN
If the existing PIN is active.
It can be ...setting the number of times this temporary PIN expires and will no longer open the door. One Button Close: Opener can be changed by one opening. The learn " button on the keypad. Then press and hold ...
3850 Elite Series Manual - Page 38
... 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. Tells you if your home! Wireless Door Control: Push bar, light feature and auxiliary button.
EverCharge® Standby Power System: Provides backup power to protect LiftMaster® garage door openers against damage from outside by...
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