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 Lonestar101999 on January 15th, 2013
Intermittent Response To Wireless Remote Opening
The problem is that intermittently the garage door will not open when pressing the wireless opener or wireless keypad. However, once opened, the wireless signals always makes it close. The hard wired opener works 100% of the time. Any ideas on why the wireless open operation is intermittent?
Current Answers
Related LiftMaster 3850 Manual Pages
3850 Elite Series Manual - Page 1
... read this manual and the enclosed safety materials carefully! ■ Fasten the manual near the garage door after installation. ■ The door WILL NOT CLOSE unless the Protector System® is connected and properly aligned. ■ Periodic checks of the opener are required to ensure safe operation. ■ The model number label is located under...
3850 Elite Series Manual - Page 2
... memory 34
3-Button remotes 34
To add, reprogram or change a Keyless Entry PIN 35
Repair Parts
36-37
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...
3850 Elite Series Manual - Page 3
... 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 is balanced and is not sticking or binding:
1. An unbalanced garage door may not reverse when required.
• NEVER try to avoid malfunction and damage. To prevent damage...
3850 Elite Series Manual - Page 4
... must not exceed 1/4" (6 mm). You may be required. See page 19 for lightweight garage doors (fiberglass, steel, aluminum, door with the installation of your opener. Torsion Spring
Extension
Spring OR
Motor Unit
--- --- --
Safety Reversing Sensor SECTIONAL DOOR INSTALLATION
Horizontal and vertical reinforcement is needed for details. Additional materials may find it helpful to...
3850 Elite Series Manual - Page 5
...garage door opener is packaged in the foam. If anything is also listed below . 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... Bell Wire attached
Safety Labels and Literature
Straight Door Arm ...
3850 Elite Series Manual - Page 6
....
• Insert a screwdriver tip into the motor unit. 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 threaded shaft until the spring releases and snaps the nut ring...
3850 Elite Series Manual - Page 7
... align with the three holes in plain view on the floor.
13.
Install garage door opener 7 feet (2.1 m) or more above floor.
7. You have now finished assembling your garage door opener. ALL repairs to do so.
8.
Install wall-mounted garage door control:
• within sight of the garage door.
• out of reach of children at minimum height of installation, test...
3850 Elite Series Manual - Page 8
...
Point
of Travel
Jamb Hardware
Header Wall 8" (20 cm)
Highest Point of travel clearance for one-piece door without track: pivot hardware
NOTE: If the total number of the garage door.
2. Close the door and mark the inside vertical centerline of inches exceeds the height available in the way;
Draw an intersecting horizontal line on...
3850 Elite Series Manual - Page 13
...NEVER permit anyone to each garage door opener. Scroll speed of closing garage door: • Install door control within sight of door, at lower temperatures although the door control remains fully functional.
Fasten with 6AB x 1-1/4" self-tapping screws (drywall installation) or 6-32 x 1" machine screws (into drywall, drill 5/32" holes and use model 378LM wireless wall control as the...
3850 Elite Series Manual - Page 23
... which the door will stop the door.
Push the door control or programmed remote control. This will stop when moving up or down.
Proceed to reach the desired closed ) position.
6. Push and hold the purple button until the door reaches the desired UP (open door provides adequate clearance. NOTE: Make sure the door opens high enough for a binding or sticking garage door.
•...
3850 Elite Series Manual - Page 24
... 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 garage door opener cannot open and close the door.
1. Push the door control or programmed remote control again. Door MUST reverse on contact with proper operation of force required to enter...
3850 Elite Series Manual - Page 25
... STEP 4 Test The Protector System®
• Press the remote control push button to close from a remote if the indicator light in either sensor is not traveling far enough in the down direction. 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 reversing...
3850 Elite Series Manual - Page 26
... remote, follow the instructions in sight until the door starts to door travel limits) is broken. NEVER use , randomly accessing over 100 billion new codes. Activate your garage door opener, it will also turn on the floor. However, you release them until down until completely closed. If you can be turned off as follows: With the opener lights off, press...
3850 Elite Series Manual - Page 27
... and 4-1/2 minutes. The Lock feature will open or close from hand-held remote controls. Motion Sensing
Press again to reverse the
On/Off
door during the closing cycle or to stop the door
Prog
while it detects a
Language Degrees (F/C)
LOCK
person entering the
garage.
(PROG) Learn Feature
The door control is activated.
27
Press again to turn off . Repeat again...
3850 Elite Series Manual - Page 30
... systems technician. • Check to disengage
trolley ONLY when garage door is CLOSED. The opener does not
require additional lubrication. Emergency Release Handle (Pull Down)
Trolley Release Arm
NOTICE
The lockout feature prevents the trolley from a falling garage door: • If possible, use handle to the opener, press the door control push bar. Pull the emergency release handle down...
3850 Elite Series Manual - Page 31
... the floor: Repeat safety reverse test after adjustments to a closed position. • Loosen the belt by a beep sounding every 30 seconds, replace the battery.
31 My door reverses for Using the Door Control. • Reprogram remotes following page.
2. Refer to troubleshooting. 1. Trolley
4.
My garage door opener beeps: • A solid LED with beep, sounding approximately...
3850 Elite Series Manual - Page 33
...' button has been pressed.
The opener is running on or off with full charge. Message
LEARN MODE PRESS REMOTE CONTROL BUTTON TO PROGRAM REMOTE
Meaning: This message will toggle to program another remote control by simply pressing the remote control button. Pressing the button will appear when the 'learn' button has been pressed a second time on the door control or anytime...
3850 Elite Series Manual - Page 34
... additional 315 MHz Security✚® remote controls. Within 30 seconds, press and hold the "learn" button on the hand-held remote that you wish to operate your garage door. Press the button on the motor unit. Press and release the "learn" button on the hand-held remote* that technical measure. Your garage door opener has already been programmed at the...
3850 Elite Series Manual - Page 35
...work , press the number of times (up to 255), then press ✽.
Then press enter.
To set a temporary PIN
You may be closed by pressing only the ENTER button if the one opening. Press... the number of your garage door opener. The keypad will glow steadily for the temporary PIN, then press Enter. Press the new 4-digit PIN you have chosen, then press Enter. When the motor...
3850 Elite Series Manual - Page 38
...of hours or entries.
370LM 378LM
915LM
CLOSED OPEN
Garage Door Monitor:
Security for a garage with model 3850 only. SECURITY✚® 3-Button Mini Remote Control : With key ring and fastening strip. For use with NO access door. Laser Park Assist: Laser enables homeowners to the garage door opener. Enables homeowner to open or closed. Also can be limited to turn on a specially...
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