LiftMaster 3850 Support Question
LiftMaster 3850 Support Question
Find answers below for this question about LiftMaster 3850.Need a LiftMaster 3850 manual? We have 1 online manual for this item!
Question posted by tnthaywood on September 15th, 2011
Wall Unit Says Check Sensors
The person who posted this question about this LiftMaster product did not include a detailed explanation. Please use the "Request More Information" button to the right if more details would help you to answer this question.
Current Answers
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
...36
Motor unit assembly parts 37
Accessories
38
Notes
39
Repair Parts and Service
40
Warranty
40
INTRODUCTION Safety Symbol and Signal Word Review
This garage door opener has been... 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 remote ...
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 loosen, move or adjust garage door, door springs, cables, pulleys, brackets or their hardware, ALL of the opener, instructions will call a trained door systems technician. If balanced, it should stay in place, supported entirely by its...
3850 Elite Series Manual - Page 5
Carton Inventory
Your garage door opener is missing, carefully check the packing material.
If anything 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...
3850 Elite Series Manual - Page 6
... 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.
Tighten bolts securely. Use of motor unit. • Align rail and styrofoam over the motor unit belt pulley. To avoid SERIOUS damage to door opener. • Position belt over belt pulley...
3850 Elite Series Manual - Page 7
... SHOWN ACTUAL SIZE
Hex Screw #8x3/8"
WARNING
Belt Cap Retainer
Motor Unit Belt Pulley Mounting Plate
WARNING
INSTALLATION
IMPORTANT INSTALLATION INSTRUCTIONS WARNING
To reduce the risk of garage door.
12.
READ AND FOLLOW ALL INSTALLATION WARNINGS AND INSTRUCTIONS.
2. Install garage door opener ONLY on wall next to fingers from moving parts of installation, test safety reversal...
3850 Elite Series Manual - Page 11
... 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 mounting height from ceiling.
11 You will need help at this point if the ladder is used to your door type as a support, raise the top of the motor unit. Slide the outer...
3850 Elite Series Manual - Page 12
...door). 7. Measure the distance from a falling garage door opener, fasten it SECURELY to structural supports of the hanging bracket to the structural support. 2. Fasten the opener to provide rigid support. Remove the 2x4. Grease the top and underside of the motor unit...hardware are shown. Cut both pieces of the garage. Check to opener at this time. Remove foam packaging. Yours may...
3850 Elite Series Manual - Page 13
...Run bell wire up wall and across ceiling to each garage door opener.
CAUTION: Continuous exposure of the door control to temperatures below -22° F (-30° C) may be connected to motor unit. Connect bell wire... White Grey
13 The trolley will travel . • ALWAYS keep garage door in sight until the sensor beam is slower at this time. Scroll speed of display is connected...
3850 Elite Series Manual - Page 14
...Reverse the procedure to close the lens.
• Use A19, standard neck garage door opener bulbs for approximately 4-1/2 minutes when power is connected.
Use ONLY incandescent.
Gently...; Make sure motor unit is unplugged. • Using a Phillips head screwdriver, remove the battery cover on
the motor unit. • Partially insert battery into motor unit with terminals facing
out...
3850 Elite Series Manual - Page 15
...) hole in the top of the motor unit:
• Remove the motor unit cover screws and set the cover aside.
• Remove the attached 3-prong cord.
• Connect the black (line) wire to pull door open door falling rapidly and/or unexpectedly. • NEVER use emergency release handle unless garage doorway is grounded. To avoid installation...
3850 Elite Series Manual - Page 16
... the down direction.
The sending eye (with an amber indicator light) transmits an invisible light beam to the garage door opener BEFORE installing the safety reversing sensor.
The invisible light beam path must be connected and aligned correctly before the garage door opener will stop and reverse to avoid drilling extra holes in the path of sectional...
3850 Elite Series Manual - Page 24
... where you would like it, repeat Program the Travel Limits.
If the garage door opener cannot open (UP).
4. Push the purple button twice to enter into Force Adjustment ...set properly. Push the door control or programmed remote control again.
Push the door control or programmed remote control a third time to enter unit into the Force Adjustment Mode. The door will flash quickly.
...
3850 Elite Series Manual - Page 25
... 1" (2.5 cm), and the opener lights will not close the door. If the opener closes the door when the safety reversing sensor is misaligned or obstructed). IMPORTANT SAFETY CHECK:
Test the Safety Reverse System after:
• Each adjustment of door arm length, limits, or force controls.
• Any repair to or adjustment of the garage door (including springs and hardware...
3850 Elite Series Manual - Page 26
... will close . NEVER use . Safety reversal system MUST be tested.
11. Garage door MUST reverse on contact with up to pull garage door open , the door will stop .
4. Using Your Garage Door Opener
Your Security✚® opener and hand-held remote. See Programming. The sensor has no obstructions to door travel limits) is adjusted, the other hardware, ALL of SEVERE INJURY...
3850 Elite Series Manual - Page 31
...the light on motor unit then refer to Programming. • If remote will not activate the door: • Verify your door, check diagnostic LED for ...garage door opener beeps: • A solid LED with a security light feature. 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...
3850 Elite Series Manual - Page 32
... lights do not glow steady.
• Inspect sensor wires for the sensors. Momentarily short across red and white terminals with self-diagnostic capabilities. 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.
3850 Elite Series Manual - Page 34
... remote control. Release the button when the motor unit lights blink. Press the PROG button on the motor unit. PROGRAMMING
NOTICE: If this Security✚® garage door opener is factory programmed to operate it has learned the code. When the motor unit lights blink, it .
Your garage door opener has already been programmed at the factory to confirm...
3850 Elite Series Manual - Page 35
... existing, known PIN
If the existing PIN is active. The motor unit lights will blink twice. To set a temporary PIN
You may be closed by pressing the four buttons for your garage door opener. It can be changed by one button close the door even after it has expired. If light bulbs are not installed...
3850 Elite Series Manual - Page 38
...10010;® 3-Button Mini Remote Control : With key ring and fastening strip. Surge Protector: The Garage Door Opener Surge Protector is open garage door manually from outside by disengaging trolley.
373P
41A5281
Extension Brackets:
(Optional) For safety reversing sensor installation onto the wall or floor.
374LM
377LM
SECURITY✚® Keyless Entry :
Enables homeowner to operate...
Similar Questions
Elite Garage Door Opener 3850 How To Change Power System
(Posted by ukclnimi 10 years ago)
How To Change Battery On Liftmaster Garage Door Opener Wall Unit
(Posted by tiar 10 years ago)
How Do I Get The Battery Out Of My Liftmaster Garage Door Opener 3850
(Posted by Dmagneil 10 years ago)
Is There A Battery On Wall Unit Of Liftmaster Garage Door Opener
(Posted by amarnie 10 years ago)
