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LiftMaster 3850 Support Question

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Question posted by elegance on July 8th, 2012

Logic Board Connection

I disconnected terminals (wires) from logic board without marking where same came from. Can someone help by telling where wires are to go

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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

...-18 Fasten the door bracket 19-20 Connect door arm to trolley 21-22 Adjustment 23-25 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...

3850 Elite Series Manual - Page 3

...; Disable ALL locks and remove ALL ropes connected to garage door BEFORE installing and operating garage door opener to avoid malfunction and damage. If your garage door is balanced and is any ropes connected to garage door. • Complete the following test to make sure your door binds, sticks, or is out of the opener, instructions will call for hand tools as shown...

3850 Elite Series Manual - Page 5

...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 Wire... Bolt 1/4"-20x1/2" (2) Wing Nut 1/4"-20 (2) 5 Carton Inventory Your garage door opener is packaged in the foam. If anything is missing, carefully check the packing material. Accessories will...

3850 Elite Series Manual - Page 6

...; Position belt over belt pulley. 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 top of the nut ring slots and brace it is finger tight ...

3850 Elite Series Manual - Page 7

NEVER connect garage door opener to power source until instructed to the installation section. 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...

3850 Elite Series Manual - Page 11

...garage door, rest garage door opener rail on 2x4 placed on the trolley release arm to this point. ENGAGED Trolley Release Arm RELEASED ONE-PIECE DOOR WITHOUT TRACK • With the door fully open...door should be level with the top of the opener to disconnect inner and outer sections. SECTIONAL DOOR OR ONE-PIECE DOOR WITH TRACK A 2x4 laid flat is not tall enough. • Open the door...

3850 Elite Series Manual - Page 12

... ANY brackets into masonry. Measure the distance from a falling garage door opener, fasten it SECURELY to the structural support. 2. Grease the top and underside of the garage. Check to structural supports before installing the opener. If the door hits the rail, raise the header bracket. 8. NOTE: DO NOT connect power to provide rigid support. Figure 1 Measure Distance...

3850 Elite Series Manual - Page 13

..., is properly adjusted and there are desired to operate the same garage door opener, it is recommended to use the anchors provided. NOTE: The functional temperature range of door and door hardware. SPECIAL NOTE: Only one end of bell wire and connect to the two screw terminals on the motor unit: white to white and white/red to...

3850 Elite Series Manual - Page 14

...garage door opener bulbs for approximately 4-1/2 minutes when power 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. • Connect the red (+) and black (-) wires from motor unit to corresponding terminals...8226; Reverse the procedure to the opener: • DO NOT use ...

3850 Elite Series Manual - Page 15

... terminal; To prevent possible SERIOUS INJURY or DEATH from the end of the rope to pull door open door falling rapidly and/or unexpectedly. • NEVER use emergency release handle unless garage doorway is clear of persons and obstructions. • NEVER use an extension cord, 2-wire adapter, or change plug in ANY way to make a permanent connection...

3850 Elite Series Manual - Page 16

... flash 10 times. 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 units must be connected and aligned correctly before the garage door opener will move in masonry construction, add a piece of wood at each other hardware) may interrupt the beam...

3850 Elite Series Manual - Page 24

... INJURED or KILLED by a closing garage door. • Too much force on garage door will interfere with 1-1/2" (3.8 cm) high object (or 2x4 laid flat) on contact with proper operation of force required to enter into Force Adjustment Mode LED Black Button Purple Button Figure 3 or LOCK LIGHT 24 If the garage door opener cannot open and close (DOWN). 3.

3850 Elite Series Manual - Page 25

... of the garage door (including springs and hardware). • Any repair to or buckling of the garage floor. • Any repair to or adjustment of the door. • Press the remote control push button to close from a remote if the indicator light in either sensor is off (alerting you to open , place a 1-1/2" (3.8 cm) board (or a 2x4...

3850 Elite Series Manual - Page 26

... and one control (force or travel . 4. ALWAYS disconnect electric power to disengage trolley ONLY when garage door is 100 watts maximum. If possible, use , randomly accessing over 100 billion new codes. If obstructed while closing , the door will operate with each use emergency release handle to garage door opener BEFORE making ANY repairs or removing covers. 15...

3850 Elite Series Manual - Page 31

...door and is operating off when door is open: • The garage door opener is against the stop . My remotes will not activate the door: • Verify your door, check diagnostic LED for the force and limit settings is not lit properly: • Check battery connections...the motor unit from the remote control or door control. Bell Wire Diagnostics Located On Motor Unit Safety Reversing ...

3850 Elite Series Manual - Page 32

... Installed Safety Reversing Sensor Your garage door opener is dim or flashing. • Realign receiving eye sensor, clean lens and secure brackets. Consult Diagnostic Chart below. 1 FLASH Safety reversing sensors wire open (broken or disconnected). If motor unit activates, replace door control wires. Momentarily short across red and white terminals with self-diagnostic capabilities. If...

3850 Elite Series Manual - Page 34

The owner of the copyright in the receiver of the non-rolling code remote control to circumvent that you press the large push button. Your garage door opener has already been programmed at the factory to operate with additional 315 MHz Security✚® remote controls. USING THE "LEARN" BUTTON To Add or ...

3850 Elite Series Manual - Page 35

... visitors or service people with a temporary 4-digit PIN. Press the temporary 4-digit PIN you have chosen, then press Enter. To set the number of your garage door opener. The door should move . To clear the temporary password, repeat steps 1-3, setting the number of hours (up to 255), then press ✽. To activate or deactivate...

3850 Elite Series Manual - Page 38

Tells you if your garage door is designed to a programmable number of hours or entries. 370LM 378LM 915LM CLOSED OPEN Garage Door Monitor: Security for the largest door of your home! Wireless Door Control: Push bar, light feature and auxiliary button. Surge Protector: The Garage Door Opener Surge Protector is open garage door manually from outside by disengaging trolley. 373P 41A5281...