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 wdavis36 on July 14th, 2013
Liftmaster Model 3850p Is Beeping.
Good Day, The unit on the garage ceiling is beeping. It has one door on the side which I removed and there are a couple of wires there attached to the inside of the unit. Is that where the battery is? Not sure how to get to the battery.
Thank you for you r feedback assistance.
LD
Current Answers
Answer #1: Posted by TommyKervz on July 14th, 2013 10:27 AM
TommyKervz
Member since:
January 10th, 2013 Points: 17,776,783
Member since:
January 10th, 2013 Points: 17,776,783
Greetings - The internal backup battery must be refusing to take charge and must need be replaced. Here is more on this -
http://liftmaster.custhelp.com/app/answers/detail/a_id/193/~/why-is-my-garage-door-opener-beeping%3F
http://liftmaster.custhelp.com/app/answers/detail/a_id/193/~/why-is-my-garage-door-opener-beeping%3F
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. ■ The door WILL...
3850 Elite Series Manual - Page 2
... your garage door 3
Tools needed 3
Planning 4
Carton inventory 5
Hardware inventory 5
Assembly
6-7
Attach the rail to the motor unit 6
Set the belt tension 6
Attach the belt cap retainer 7
Installation
7-22
Installation safety instructions 7
Determine the header bracket location 8
Install the header bracket 9
Attach the rail to the header bracket 10
Position the opener...
3850 Elite Series Manual - Page 3
..., installation and adjustment of balance. Preparing your garage door
Before you begin:
• Disable locks.
• Remove 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.
If your garage door is balanced and is any binding or...
3850 Elite Series Manual - Page 4
...
Motor Unit
--- --- -- Vertical Centerline of Door
Access Door
Wallmounted Door Control
Safety
Gap between floor and bottom of door must not exceed 1/4" (6 mm)
Reversing Sensor
ONE-PIECE DOOR WITHOUT TRACK
FINISHED CEILING
Support bracket & fastening hardware is required. See page 19 for lightweight garage doors (fiberglass, steel, aluminum, door with the installation of your opener...
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 Bracket
Trolley
Optional EBvearttCehryarge® Stan(PdbacykPeodwSeerpSaryastteelym) (battery...model purchased.
Carton Inventory
Your garage door opener...
3850 Elite Series Manual - Page 6
... 1 Attach the Rail to the Motor Unit
To avoid installation difficulties, do so. • Remove the two... washered bolts mounted on the square end. Use of any tools.
• Insert a screwdriver tip into the motor unit.
To avoid SERIOUS damage to opener, ONLY use any other bolts will cause serious damage to do not run the garage door opener until instructed to door opener...
3850 Elite Series Manual - Page 7
... cap retainer over the motor unit belt pulley so the three holes in cap align with #8x3/8" hex screws provided. Attach with the three holes in mounting plate. They could result in garage door or opener mechanisms.
9. Place entrapment warning label on inside of SEVERE INJURY or DEATH:
1. ALL repairs to garage door control.
11. An improperly balanced...
3850 Elite Series Manual - Page 8
...
Unfinished Ceiling
2x4 Vertical Centerline of the garage door.
2. You can attach it to the ceiling (see page 9) when clearance is in your door.
1.
Follow the instructions which are under EXTREME tension.
• ALWAYS call a trained door systems technician if garage door binds, sticks, or is out of travel clearance for one-piece door without track: pivot hardware Open your door to...
3850 Elite Series Manual - Page 10
... bracket against the header bracket.
• Align the bracket holes and join with a clevis pin as a protective base. Header Wall Header Bracket Belt Pulley Bracket
Garage Door
INSTALLATION STEP 3 Attach the Rail to the Header Bracket
• Position the opener on a temporary support to allow the rail to secure.
3850 Elite Series Manual - Page 11
... prevent damage to 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 and parallel to the floor, measure the distance from the floor to determine the correct mounting height from ceiling. You will need...
3850 Elite Series Manual - Page 12
... and underside of the motor unit to make sure the rail is not centered above the door). 7.
HARDWARE SHOWN ACTUAL SIZE...door (or in the structural supports. 4. Operate the door manually. INSTALLATION STEP 5 Hang the Opener
Three representative installations are not provided. 1. On finished ceilings (Figure 2 and Figure 3), attach a sturdy metal bracket to opener at this time. Remove...
3850 Elite Series Manual - Page 13
...) Run bell wire up wall and across ceiling to operate or play with a small flat-head screwdriver (Figure 1). Remove push bar cover by gently prying at a minimum height of 5 feet (1.5 m) where small children cannot reach, away from moving parts of door. • NEVER permit children to motor unit. Use insulated staples to the full open circuit...
3850 Elite Series Manual - Page 15
... of the motor unit:
• Remove the motor unit cover screws and set the cover aside.
• Remove the attached 3-prong cord.
• Connect the black (line) wire to the screw on the silver terminal; Ensure that the rope and handle clear the tops of persons and obstructions. • NEVER use handle to pull door open door falling rapidly...
3850 Elite Series Manual - Page 18
... eye. If the receiving eye indicator light is already open wire to the opener. NOTE: When the invisible beam path is obstructed or misaligned while the door is closing, the door will blink 10 times. See page 16. Use insulated staples to secure wire to wall and ceiling.
• Strip 7/16" (11 mm) of insulation from both...
3850 Elite Series Manual - Page 28
... accept any interference received, including interference that you want to Comply with same type 3V2016 coin cells. To replace the batteries, remove the two screws and open the remote control housing. With the door closed, press and hold the Lock button on a non-metallic surface. Test by pressing a button. Press and hold the remote...
3850 Elite Series Manual - Page 29
... service or maintenance. • Use ONLY LiftMaster part number 485LM for an extended period of time. Battery Status LED
NOTE: LED is most visible with beep indicates the unit is operating on battery power and that the battery charge is low.
• To test the battery is functioning properly, open and close the garage door.
• Re-connect the motor...
3850 Elite Series Manual - Page 31
...8226; Loosen the belt by a beep sounding every 30 seconds, replace the battery.
31
Using the Wall-Mounted Door Control, Light Feature.
6. 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 when door is open: • The garage door opener is approximately 1-1/4" (3.18 cm...
3850 Elite Series Manual - Page 32
... 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 motor unit. Consult Diagnostic Chart below.
1 FLASH
Safety reversing sensors wire open (broken or disconnected).
See Adjustment section. • If...
3850 Elite Series Manual - Page 38
...;® Keyless Entry :
Enables homeowner to protect LiftMaster® garage door openers against damage from outside by adding additional sensor modules...OPEN
Garage Door Monitor:
Security for the largest door of your garage door is designed to operate garage door opener from lightning and power surges.
38 ACCESSORIES
1702LM
Outside Quick Release:
Required for a garage with model 3850...
3850 Elite Series Manual - Page 40
...; STANDBY POWER BATTERY
The Chamberlain Group, Inc. ("Seller") warrants to comply strictly with any product returned for the residence in materials and/or workmanship for warranty repair. Failure to the first retail purchaser of the product. THIS LIMITED WARRANTY DOES NOT COVER ANY PROBLEMS WITH, OR RELATING TO, THE GARAGE DOOR OR GARAGE DOOR HARDWARE...
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