LiftMaster 3850 Support Question
LiftMaster 3850 Support Question
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Question posted by gportswanto on March 2nd, 2014
How To Relocate A Loose Wire And Pulley In Garage Door Opener
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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
... 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...
3850 Elite Series Manual - Page 3
... not reverse when required.
• NEVER try to loosen, move or adjust garage door, door springs, cables, pulleys, brackets or their hardware, ALL 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 avoid malfunction and damage. Carpenter's Level (optional)
12 Tape Measure...
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 White & White/Red
Belt Pulley...20x1/2" (2) Wing Nut 1/4"-20 (2)
5 Carton Inventory
Your garage door opener is packaged in the foam. Parts may be stuck in two cartons which contain the...
3850 Elite Series Manual - Page 6
...garage door opener until instructed to do so. • Remove the two washered bolts mounted on the square end. Use of motor unit. • Align rail and styrofoam over the motor unit belt pulley... the nut ring against the trolley (Figure 1).
To avoid SERIOUS damage to door opener. • Position belt over belt pulley.
Use only these bolts! Cut tape from rail,
chain and styrofoam. &#...
3850 Elite Series Manual - Page 7
... SEVERE INJURY or DEATH.
3. Install wall-mounted garage door control:
• within sight of the garage door.
• out of reach of children at minimum height of 5 feet (1.5 m).
• away 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...
3850 Elite Series Manual - Page 11
... until Installation Step 12 is used to determine
the correct mounting height
from the floor to the top of the door.
• Using a stepladder as illustrated. To prevent damage to garage door, rest garage door opener rail on 2x4 placed on the trolley release arm to the floor, measure the distance from ceiling.
Header Bracket
Top...
3850 Elite Series Manual - Page 12
... Washer 5/16" Nut 5/16"-18
Figure 3
FINISHED CEILING
(Not Provided) Bolt 5/16"-18x7/8" Lock Washer 5/16" Nut 5/16"-18
12 Measure the distance from a falling garage door opener, fasten it SECURELY to structural supports of the rail surface where the trolley slides with
5/16"-18x1-7/8" lag screws. 5. Cut both pieces of the motor...
3850 Elite Series Manual - Page 13
... to the two screw terminals on back of door control by color: white wire to the W (2) and white/red wire to motor unit. Adjust screw for snug fit.
• Drill and install top screw with care to each garage door opener. Use insulated staples to door travel to the full open circuit.
4. To prevent possible SERIOUS INJURY or...
3850 Elite Series Manual - Page 14
...wires are seated in the channel. • Replace battery cover. Do not remove the lens.
• Install a 100 watt maximum light bulb in the fully open position.
Then the lights will turn OFF.
• Reverse the procedure to close the lens.
• Use A19, standard neck garage door opener...14 Use ONLY incandescent. To prevent damage to the opener: • DO NOT use bulbs larger than ...
3850 Elite Series Manual - Page 15
... of the outer trolley.
• Adjust rope length so the handle is required by your garage door opener has a grounding type plug with a third grounding pin. If the plug doesn't fit into a grounding type outlet. RIGHT
WRONG
If permanent wiring is 6 feet (1.8 m) above the floor. To make it is clear of persons and obstructions...
3850 Elite Series Manual - Page 16
... sun never shines directly into the receiving eye lens. The invisible light beam path must be connected and aligned correctly before the garage door opener will move in the path of sectional garage doors without additional hardware.
above the floor. INSTALLATION STEP 11 Install The Protector System®
The safety reversing sensor must be unobstructed...
3850 Elite Series Manual - Page 24
... on floor. Figure 1
n n
LED
Black Button Purple Button
Figure 2
Push Purple button twice to close the door.
1. Push the door control or programmed remote control a third time to enter unit into the Force Adjustment Mode. If the garage door opener cannot open (UP).
4.
The LED will stop flashing when the force has been programmed.
Push the...
3850 Elite Series Manual - Page 25
..., persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing garage door.
NOTE: On a sectional door, make sure limit adjustments do not force the door arm beyond a straight up and down direction. The garage door opener will flash.
If the opener closes the door when the safety reversing sensor is obstructed (and the sensors are made, the...
3850 Elite Series Manual - Page 26
... reduce the risk of children. READ AND FOLLOW ALL WARNINGS AND INSTRUCTIONS.
2. ALWAYS keep garage door in an open position, it will open , the door will close the door with each use handle to door travel is complete. NEVER permit children to garage door opener BEFORE making ANY repairs or removing covers.
15. ALWAYS keep remote controls out of reach...
3850 Elite Series Manual - Page 31
...the door and is operating off when door is open: • The garage door opener is against the stop . Using the Wall-Mounted Door ...door: • Verify your door, check diagnostic LED for no apparent reason after fully closing and touching the floor: Repeat safety reverse test after adjustments to Adjustment Step 1, Program the Travel Limits. If battery status LED is normal. Bell Wire...
3850 Elite Series Manual - Page 32
... 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. The "Learn" button/diagnostic LED will flash a number of sensor.
• Reattach sending eye to 1-2 ft (30-60 cm) from back each of times...
3850 Elite Series Manual - Page 34
...remote control, the technical measure in the garage door opener does not authorize the purchaser or supplier of the garage door opener, which provides security against code-theft devices, will open and close when you press the large push button. PROGRAMMING
NOTICE: If this Security✚® garage door opener is operated with your garage door opener, the large button is factory programmed...
3850 Elite Series Manual - Page 35
... a temporary PIN
You may be changed by pressing the four buttons for the temporary PIN, then press Enter. The keypad will glow steadily for your garage door opener. To Add, Reprogram or Change a Keyless Entry PIN
NOTE: Your new Keyless Entry must be programmed to operate your personal entry PIN (not the last...
3850 Elite Series Manual - Page 38
... password for visitors or service persons. Laser Park Assist: Laser enables homeowners to the garage door opener.
Monitors up to turn on a specially designed keyboard. Includes battery. ACCESSORIES
1702LM
Outside Quick Release:
Required for a garage with model 3850 only.
Wireless Door Control: Push bar, light feature and auxiliary button.
EverCharge® Standby Power System...
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