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 grulab7 on November 8th, 2020
My 3850p-267 Problem.
My 3850p-267 receives signal and lights turn on, but motor do not operate.
Current Answers
Answer #1: Posted by Odin on November 8th, 2020 10:08 AM
Odin
Member since:
April 10th, 2010 Points: 41,236,690
Member since:
April 10th, 2010 Points: 41,236,690
See numbered par. 2, page 31, at https://data2.manualslib.com/pdf2/38/3737/373628-chamberlain/3850.pdf?668701be8097797d7e53359157562d58&take=binary.
Hope this is useful. Please don't forget to click the Accept This Answer button if you do accept it. My aim is to provide reliable helpful answers, not just a lot of them. See https://www.helpowl.com/profile/Odin.
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
...-37
Rail assembly parts 36
Installation parts 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 designed and tested to offer safe service provided it is installed, operated, maintained and tested in strict accordance with...
3850 Elite Series Manual - Page 3
... by its springs.
2.
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. An unbalanced garage door may not reverse when required.
• NEVER try to loosen, move or adjust garage door, door springs, cables, pulleys, brackets or their hardware...
3850 Elite Series Manual - Page 5
... below . 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... Accessories will depend on the model purchased. Carton Inventory
Your garage door opener is packaged in the foam.
3850 Elite Series Manual - Page 6
...top of motor unit. Rotate about 1/4 turn until it firmly against the trolley (Figure 3). To avoid SERIOUS damage to opener, ONLY use any other bolts will cause serious damage to door opener. •...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 ...
3850 Elite Series Manual - Page 7
... To avoid SERIOUS PERSONAL INJURY or DEATH from ALL moving garage door opener: • ALWAYS keep hand clear of belt pulley while operating
opener. • SECURELY attach belt pulley cover BEFORE operating.
8x3/8" Hex Screws
HARDWARE SHOWN ACTUAL SIZE
Hex Screw #8x3/8"
WARNING
Belt Cap Retainer
Motor Unit Belt Pulley Mounting Plate
WARNING
INSTALLATION
IMPORTANT INSTALLATION INSTRUCTIONS...
3850 Elite Series Manual - Page 11
... a stepladder as illustrated. Rail
Door
2x4 is used to garage door, rest garage door opener rail on 2x4 placed on the trolley release arm to this point.
Do not position the opener more than 4" (10 cm) above this height.
• The top of the door should be level with the top of the motor unit. Slide the outer trolley...
3850 Elite Series Manual - Page 12
... hardware are shown. Measure the distance from a falling garage door opener, fasten it SECURELY to structural supports of the rail ...garage.
INSTALLATION STEP 5 Hang the Opener
Three representative installations are not provided. 1. Remove foam packaging. On finished ceilings (Figure 2 and Figure 3), attach a sturdy metal bracket to opener at this time. Cut both pieces of the motor...
3850 Elite Series Manual - Page 13
...connect terminals on the motor unit: white to...VIEW)
Door Control Terminal Screws
LOCK LOCK
Lock Button Light
Button
...garage door opener. CAUTION: Continuous exposure of door control on back of door control by gently prying at the lower/middle portion of closing garage door: • Install door control within sight of door, at this time. Fasten with the operation of door and door...
3850 Elite Series Manual - Page 14
...; 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 each socket. The lights will turn ON and remain lit for replacement. To prevent possible OVERHEATING of the endpanel or light socket: • DO NOT use short neck...
3850 Elite Series Manual - Page 15
...Thread the other end of the rope through the hole in the top of the motor unit:
• Remove the motor unit cover screws and set the cover aside.
• Remove the attached 3-prong... fit into a grounding type outlet.
RIGHT
WRONG
If permanent wiring is required by your garage door opener has a grounding type plug with an overhand knot.
PERMANENT WIRING CONNECTION
Ground Tab Green ...
3850 Elite Series Manual - Page 16
... path 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 while the door is closing , the door will stop and reverse to the receiving eye (with a green indicator light). INSTALLATION STEP 11 Install The Protector System®
The safety reversing sensor...
3850 Elite Series Manual - Page 24
... proper operation of force required to open and close the door (DOWN).
The door must travel through a complete cycle, up and down, in order for a binding or sticking garage door.
• After ANY adjustments are made, the safety reversal system MUST be set properly. If the door is not sticking or binding. If the garage door opener cannot open (UP).
4.
The door...
3850 Elite Series Manual - Page 25
....
Safety Reversing Sensor
25
Safety Reversing Sensor
The door will not move more than 1" (2.5 cm), and the opener lights will not close the door.
The garage door opener will flash. Without a properly installed safety reversal system, persons (particularly small children) could be tested.
If the opener closes the door when the safety reversing sensor is not traveling far...
3850 Elite Series Manual - Page 26
... following :
• The Hand-Held Remote Control: Hold the large push button down until the light goes on when someone walks through the open , the door will turn on again.
26 If open garage door.
The sensor has no obstructions to garage door opener BEFORE making ANY repairs or removing covers.
15. READ AND FOLLOW ALL WARNINGS AND INSTRUCTIONS.
2. SAVE...
3850 Elite Series Manual - Page 31
... 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 not turn off of any binding problems.
• Refer to Diagnostic Chart on when the safety reversing sensor beam has been obstructed. My remotes will still not activate your Smart...
3850 Elite Series Manual - Page 32
..., if the indicator lights glow replace the wires for a short (staple in wire), replace as needed . • Disconnect wires at door control, touch wires together. 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...
3850 Elite Series Manual - Page 34
.... When the motor unit lights blink, it . The owner of the copyright in the receiver of the non-rolling code remote control to circumvent that you wish to operate your garage door.
3. To Erase All Codes From Motor Unit Memory
To deactivate any Security✚® 3-button remote or mini-remote can be heard. Your garage door opener has already...
3850 Elite Series Manual - Page 35
... digit personal identification number (PIN) of your choice on the keypad. The opener light will blink four times.
3. The door should move .
To set the number of times this temporary PIN will work , press the number of hours or times to operate your personal entry PIN (not the last temporary PIN), then press and...
3850 Elite Series Manual - Page 38
...
CLOSED OPEN
Garage Door Monitor:
Security for the largest door of your garage door is designed to turn on a specially designed keyboard.
Enables homeowner to open or closed. SECURITY✚® 3-Button Mini Remote Control : With key ring and fastening strip. Wireless Door Control: Push bar, light feature and auxiliary button.
Also can be limited to operate garage door opener from...
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