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 Anonymous-164560 on May 2nd, 2018
Remote Control Getting Worse
Remote control operation becoming intermittent. Need to be very close to garage
Current Answers
Answer #1: Posted by Odin on May 2nd, 2018 12:31 PM
Odin
Member since:
April 10th, 2010 Points: 41,236,640
Member since:
April 10th, 2010 Points: 41,236,640
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Related LiftMaster 3850 Manual Pages
3850 Elite Series Manual - Page 1
... 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 the light lens on...
3850 Elite Series Manual - Page 2
...word review 2
Preparing your garage door 3
Tools needed 3
Planning 4
Carton ...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 30
Care of your opener...
3850 Elite Series Manual - Page 3
... 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 make sure your garage door is balanced and is any ropes connected to garage door.
• Complete the following test to avoid malfunction and damage. Sectional Door
One-Piece Door
Tools needed
During assembly, installation...
3850 Elite Series Manual - Page 5
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 (1) ONLY
Motor Unit ...
3850 Elite Series Manual - Page 6
... do not run the garage door opener until instructed to do so. • Remove the two washered bolts mounted on top of any other bolts will cause serious damage to opener, ONLY use any tools...
Square End
Trolley
Threaded
Nut
Shaft
Ring
Nut Ring Slots
Figure 2 To avoid SERIOUS damage to door opener. • Position belt over belt pulley. Washered Bolt 5/16"-18x1/2"
Rail Hole
USE ONLY...
3850 Elite Series Manual - Page 7
...or maintenance.
7 You have now finished assembling your garage door opener. Mount emergency release handle 6 feet (1.8 m) above floor.
6. Place entrapment warning label on inside of the door.
10. 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...
3850 Elite Series Manual - Page 10
... ACTUAL SIZE
Clevis Pin 5/16"x2-3/4"
Ring Fastener
10 NOTE: If the door spring is in the way you'll need help. Have someone hold the opener securely on the garage floor below the header bracket.
Header Wall Header Bracket Belt Pulley Bracket
Garage Door
INSTALLATION STEP 3 Attach the Rail to the Header Bracket
• Position...
3850 Elite Series Manual - Page 11
... section of door.
You will need help at this point if the ladder is used to determine
the correct mounting height
from ceiling. To prevent damage to -rail distance.
• Raise the opener onto a stepladder. SECTIONAL DOOR OR ONE-PIECE DOOR WITH TRACK
A 2x4 laid flat is convenient for setting an ideal door-to garage door, rest garage door opener rail...
3850 Elite Series Manual - Page 12
...
of the garage.
Remove foam packaging. Measure the distance from a falling garage door opener, fasten it SECURELY to the hanging brackets with
5/16"-18x1-7/8" lag screws. 5. Fasten the opener to structural ...installing the opener. NOTE: DO NOT connect power to provide rigid support. Check to a support with 5/16"-18x7/8"
hex bolts, lock washers and nuts. 6. Operate the door manually....
3850 Elite Series Manual - Page 13
... from a closing garage door. Use insulated staples to the full open circuit.
4. DO NOT connect power and operate the opener at lower temperatures although the door control remains fully functional...VOLT low voltage wires. NOTE: If you have any trouble with door control push buttons or remote controls. • Activate door ONLY when it can be seen clearly, is connected and properly aligned...
3850 Elite Series Manual - Page 23
.... To prevent damage to close ). Adjust the position of the door by a closing the door (Figure 3).
4. Push the door control or programmed remote control. Setting the DOWN position:
5. Push and hold the black button until the door reaches the desired DOWN (closed , if there appears to be too much pressure on contact with proper operation of garage door travel limits will interfere with...
3850 Elite Series Manual - Page 24
... will interfere with 1-1/2" (3.8 cm) high object (or 2x4 laid flat) on garage door will close the door.
1. Push the door control or programmed remote control again.
Without a properly installed safety reversal system, persons (particularly small children) could be set properly. The LED will open (UP).
4. Figure 1
n n
LED
Black Button Purple Button
Figure 2
Push Purple button twice...
3850 Elite Series Manual - Page 25
... System®
• Press the remote control push button to open , place a 1-1/2" (3.8 cm) board (or a 2x4 laid flat) on the floor, centered under the garage door.
• Operate the door in the down position.
NOTE: On a sectional door, make sure limit adjustments do not force the door arm beyond a straight up and down direction. Door MUST reverse on contact with...
3850 Elite Series Manual - Page 26
... which are under the following :
• The Hand-Held Remote Control: Hold the large push button down until completely closed. An improperly balanced door may also need adjustment.
10. See Programming. If possible, use handle to garage door opener BEFORE making ANY repairs or removing covers.
15. The opener lights will blink for 10 seconds, until the light goes...
3850 Elite Series Manual - Page 30
... disengage
trolley ONLY when garage door is clear of Your Opener
MAINTENANCE SCHEDULE Once a Month • Manually operate door.
The door should be raised and lowered manually as often as necessary. Pull the emergency release handle down on the next UP or DOWN operation, either manually or by using the door control or remote. To Open the Door Manually
To prevent possible...
3850 Elite Series Manual - Page 31
... the remote control or door control. My motor unit hums briefly: • First verify that the trolley is against the stop . The need for occasional adjustment for flashes on the following the programming instructions. My garage door opener beeps: • A solid LED with beep, sounding approximately every 2 seconds, indicates the motor unit is activating the door and is operating off...
3850 Elite Series Manual - Page 32
... sensor 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 jumper wire.
If sending eye indicator...
3850 Elite Series Manual - Page 34
... 315 MHz Security✚® remote controls. The learn indicator light will open and close when you wish to operate your hand-held remote* that you wish to operate with your garage door opener, the large button is operated with your garage door.
3.
PROGRAMMING
NOTICE: If this Security✚® garage door opener is factory programmed to operate it has learned the code...
3850 Elite Series Manual - Page 35
...learn indicator light will work , press the number of your garage door opener.
Press the PROG button again to 255), then press &#...LEARN" BUTTON
USING THE DOOR CONTROL
LOCK
LIGHT
1.
The door should move . The keypad will blink twice when the one opening. The opener light will blink twice. One Button Close: Opener can be programmed to operate your choice on motor...
3850 Elite Series Manual - Page 38
...;® 4-Button Remote Control : Includes visor clip. EverCharge® Standby Power System: Provides backup power to operate garage door opener from lightning and power surges.
38 Also can be limited to a programmable number of hours or entries.
370LM 378LM
915LM
CLOSED OPEN
Garage Door Monitor:
Security for a garage with model 3850 only.
Surge Protector: The Garage Door Opener Surge...
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