LiftMaster 3850 Support and Manuals
Get Help and Manuals for this LiftMaster item
View All Support Options Below
Free LiftMaster 3850 manuals!
Problems with LiftMaster 3850?
Ask a Question
Free LiftMaster 3850 manuals!
Problems with LiftMaster 3850?
Ask a Question
Most Recent LiftMaster 3850 Questions
Where Can I Find Serial Number For Hbw0777
Where can I find serial number for HBW0777?
Where can I find serial number for HBW0777?
(Posted by gatsie2 1 year ago)
Door Opening Problem
When I use the 3850 door opener, the garage door only opens about 6" then closes. When Ibhit the but...
When I use the 3850 door opener, the garage door only opens about 6" then closes. When Ibhit the but...
(Posted by Ajdettbarn 1 year ago)
Door Does Not Stay Closed
Model 3850P Door opens as soon as it reaches the ground. Safety sensors are good. Door closes softly...
Model 3850P Door opens as soon as it reaches the ground. Safety sensors are good. Door closes softly...
(Posted by Tony52691 1 year ago)
Find Belt Part #
I can't find belt numbert for 41A5685 my liftmaster garage door Modelo is 3850P-26
I can't find belt numbert for 41A5685 my liftmaster garage door Modelo is 3850P-26
(Posted by rafaelcamarillo2277 2 years ago)
Door Won't Close. Trolley At Stop Bolt. Only Travels Away From Door Now.
Door traveled too far up into the stop bolt. I released the emergency release as recommended. Loosen...
Door traveled too far up into the stop bolt. I released the emergency release as recommended. Loosen...
(Posted by Crdg2011 2 years ago)
LiftMaster 3850 Videos
LiftMaster 3850 Battery Backup Demo During a Thunderstorm
Duration: 5:42
Total Views: 2,959
Duration: 5:42
Total Views: 2,959
Naperville Garage Door Installs LiftMaster 3850
Duration: :32
Total Views: 392
Duration: :32
Total Views: 392
RCS Liftmaster 3850 Commercial.wmv
Duration: :16
Total Views: 191
Duration: :16
Total Views: 191
Popular 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 WILL NOT CLOSE...
3850 Elite Series Manual - Page 2
...Program the travel limits 23 Set the force 24 Test the safety reversal system 25 Test the 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 control battery 28
EverCharge® Standby Power System (optional 29
To open the door manually...
3850 Elite Series Manual - Page 5
... the model purchased. 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 3850-267...
3850 Elite Series Manual - Page 6
...
Motor Unit Belt Pulley
Rail Hole
ASSEMBLY STEP 2
Set the Belt Tension
• By hand, thread the...installation difficulties, do not run the garage door opener until it is finger tight against the trolley (Figure 3). To avoid SERIOUS damage to opener...Figure 2).
• Place a 7/16" open end wrench on the threaded shaft until instructed to door opener. • Position belt over belt pulley...
3850 Elite Series Manual - Page 7
... may not reverse when required and could be made by a trained door systems technician BEFORE installing opener.
4. NEVER connect garage door opener to power source until instructed to the installation section. ALL repairs to fingers from electrocution, disconnect ALL electric and battery power BEFORE performing ANY service or maintenance.
7 They could result in SEVERE INJURY or DEATH...
3850 Elite Series Manual - Page 11
... rail.
• If the top section or panel hits the trolley when you raise the door, pull down on top section of door. Slide the outer trolley toward the motor unit.
INSTALLATION STEP 4
Position the Opener
Follow instructions which apply to your door type as a support, raise the top of the opener to this point. The trolley can remain...
3850 Elite Series Manual - Page 12
...distance from a falling garage door opener, fasten it SECURELY to the structural support. 2. Drill 3/16" pilot holes in line
with
5/16"-18x1-7/8" lag screws. 5. If the door hits the rail, raise...grease. Fasten the opener to provide rigid support. Check to a support with the header bracket if the bracket is not centered above the door). 7. Operate the door manually. HARDWARE SHOWN ...
3850 Elite Series Manual - Page 13
... machine screws (into drywall, drill 5/32" holes and use model 378LM wireless wall control as in place (Figure 1).
3. (For standard installations ONLY) Run bell wire up wall and across ceiling to the R (1) (Figure 2).
2.
INSTALLATION STEP 6
Install the Smart Control Panel®
Locate door control within sight of garage door, out of reach
of children at the lower/middle portion...
3850 Elite Series Manual - Page 14
...the battery or working around the battery compartment. Then the lights will turn OFF.
• Reverse the procedure to close the lens.
• Use A19, standard neck garage door opener ...in the channel. • Replace battery cover.
NOTE: Use only standard light bulbs. The lights will turn ON and remain lit for replacement. INSTALLATION STEP 7 Install the EverCharge® Standby Power ...
3850 Elite Series Manual - Page 15
... be in the release arm of electric shock, your local code, refer to the following procedure.
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. Secure with a third...
3850 Elite Series Manual - Page 16
... an amber indicator light) transmits an invisible light beam to the garage door opener BEFORE installing the safety reversing sensor. No part of sectional garage doors without additional hardware. above the floor. Either can be installed on the wall, the brackets must be unobstructed.
If it is closing garage door: • Correctly connect and align the safety reversing sensor. Safety...
3850 Elite Series Manual - Page 26
... billion new codes.
If open door falling rapidly and/or unexpectedly, causing SEVERE INJURY or DEATH.
7. However, you can be seen clearly, it must be programmed before use handle to move .
• The Wall-Mounted Door Control: Hold the push button or bar down travel limits) is CLOSED. when the opener is 100 watts maximum.
With an Smart Control Panel®, this...
3850 Elite Series Manual - Page 27
... to toggle between Fahrenheit and Celsius. To turn off . Using the Wall-Mounted Door Control
THE SMART CONTROL PANEL®
Press the push bar to initiate LEARN mode and the display will Push show 'Learn Mode - Press the PROG button once to
open and close the door. If you first disable the motion sensor. Repeat the procedure and...
3850 Elite Series Manual - Page 31
... (Green Indicator Light)
3. The trolley should travel . • Refer to Operation section; My garage door opener beeps: • A solid LED with a security light feature. Having a Problem (Troubleshooting)
NOTE: Always unplug battery prior to Adjustment Step 2, Setting the force.
• Run the motor unit from the remote control or door control. The need for occasional adjustment for the...
3850 Elite Series Manual - Page 38
...This temporary password can add a temporary password for visitors or service persons. SECURITY✚® 4-Button Remote Control : Includes visor clip.
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...
LiftMaster 3850 Reviews
We have not received any reviews for LiftMaster yet.