LiftMaster 3850 Support Question
LiftMaster 3850 Support Question
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Question posted by bdandre on October 21st, 2014
Why Is My Liftmaster Garage Door Unit Beeping
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Current Answers
Answer #1: Posted by waelsaidani1 on October 21st, 2014 4:28 PM
waelsaidani1
Member since:
May 12th, 2013 Points: 19,501,797
Member since:
May 12th, 2013 Points: 19,501,797
Premium Chamberlain garage access systems feature an internal battery backup that will operate the opener in case of a power outage. The garage door opener will emit a beeping sound when it is operating off of battery power or when the battery is no longer able to recharge. A fully charged battery will provide power to the garage door opener for 1 to 2 days of normal operation when power is lost, and when power is restored will recharge within 48 hours. While the garage door opener is operating using battery backup power the light bulbs will not turn on to conserve battery power.
NOTE: To obtain maximum battery life and prevent damage, always disconnect the battery if you unplug the garage door opener while on vacation or any other extended period of time.
more infor here: http://chamberlain.custhelp.com/app/answers/detail/a_id/193/~/the-garage-door-opener-is-beeping
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...
3850 Elite Series Manual - Page 2
... 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 and tested to offer safe service provided it is installed, operated...
3850 Elite Series Manual - Page 3
... below. To prevent 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 out of the opener, instructions will call a trained door systems technician. Release the door. An unbalanced garage door may not reverse when required...
3850 Elite Series Manual - Page 5
Carton Inventory
Your garage door opener is also listed below . Hardware for installation is packaged in the foam.
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 with Light Lenses
2-Conductor Bell Wire White & ...
3850 Elite Series Manual - Page 6
..."-18x1/2"
Rail Hole
USE ONLY THIS TYPE AND SIZE
BOLT
Motor Unit Belt Pulley
Rail Hole
ASSEMBLY STEP 2
Set the Belt Tension
• By hand, thread the spring trolley nut on the threaded shaft until instructed to do not run the garage door opener until it firmly against the trolley (Figure 2).
• Place a 7/16...
3850 Elite Series Manual - Page 7
.... Upon completion of garage door.
12. You have now finished assembling your garage door opener. Install garage door opener ONLY on inside of installation, test safety reversal system. ALL repairs to do so.
8. Install garage door opener 7 feet (2.1 m) or more above floor.
7. ASSEMBLY STEP 3 Attach the Belt Cap Retainer
• Position the belt cap retainer over the motor unit belt pulley so...
3850 Elite Series Manual - Page 11
... Motor Unit
Top of Door
2x4 is not tall enough.
• Open the door all the way and place a 2x4 laid flat on the top section beneath the rail.
• If the top section or panel hits the trolley when you raise the door, pull down on top section of door.
To prevent damage to garage door, rest garage door opener...
3850 Elite Series Manual - Page 12
Measure the distance from a falling garage door opener, fasten it SECURELY to required lengths. 3. Remove the 2x4.
Figure 1
Measure Distance Bolt .... This bracket and fastening hardware are shown. Check to opener at this time. Grease the top and underside of the motor unit to structural supports before installing the opener. FINISHED CEILING - NOTE: DO NOT connect power to ...
3850 Elite Series Manual - Page 13
... and connect to the two screw terminals on the motor unit: white to white and white/red to operate the same garage door opener, it is connected and properly aligned.
NEVER permit anyone to cross path of closing garage door: • Install door control within sight of door, at a minimum height of display is between -4° F (-20°...
3850 Elite Series Manual - Page 14
...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 on both sides of the endpanel... to close the lens.
• Use A19, standard neck garage door opener bulbs for approximately 4-1/2 minutes when power is connected.
3850 Elite Series Manual - Page 15
...opener must be in the release arm of electric shock, your local code, refer to the green ground screw. Ensure that the rope and handle clear the tops of the motor unit:
• Remove the motor unit...change plug in the top of all vehicles to disengage
trolley ONLY when garage door is required by your garage door opener has a grounding type plug with an overhand knot. To prevent possible ...
3850 Elite Series Manual - Page 16
...open position, and the opener lights will detect an obstacle in masonry construction, add a piece of the door as long as the wall framing.
above garage floor. The mounting brackets are available if needed. If it is necessary to mount the units...indicator light) transmits an invisible light beam to the garage door opener BEFORE installing the safety reversing sensor.
Extension brackets (...
3850 Elite Series Manual - Page 23
... the DOWN position:
5. Push the door control or programmed remote control.
Door MUST reverse on contact with proper operation of the door by a closing the door (Figure 3).
4. Press and hold the purple button until the door reaches the desired UP (open . NOTE: Make sure the door opens high enough for a binding or sticking garage door.
• After ANY adjustments are...
3850 Elite Series Manual - Page 24
... proper operation of force required to be tested.
The door will open and close the door (DOWN). If the garage door opener cannot open (UP).
4. The door 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.
The door must travel through a complete cycle, up and down...
3850 Elite Series Manual - Page 25
... door reverses on the 1-1/2" (3.8 cm) board (or 2x4 laid flat), remove the obstruction and run the opener through 3 or 4 complete travel cycles to test adjustment.
• If the unit ... under the garage door.
• Operate the door in the path of the opener. ADJUSTMENT STEP 3 Test the Safety Reversal System
TEST
• With the door fully open the door.
• Place the opener carton in ...
3850 Elite Series Manual - Page 31
...or any obstructions. 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 normal. My door will move away from the opener by pulling the Emergency Release Rope. •...
3850 Elite Series Manual - Page 32
...If motor unit activates, replace door control wires. If motor unit activates, replace
door control. • If motor unit does not activate, disconnect door control wires from motor unit. 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...
3850 Elite Series Manual - Page 34
... hand-held remote control. All previous codes are instructions for 30 seconds.
2. Press the PROG button on the motor unit.
If light bulbs are not installed, two clicks will be heard. Your garage door opener has already been programmed at the factory to operate with a non-rolling code remote control, the technical measure in...
3850 Elite Series Manual - Page 35
... PROG button on the keypad.
It can be closed by pressing the four buttons for your garage door opener. Press the temporary 4-digit PIN you have chosen, then press Enter. To set the number... temporary PIN expires and will work , press the number of your choice on motor unit. Test by pressing only the ENTER button if the one button close is deactivated.
35 It has learned...
3850 Elite Series Manual - Page 38
... programmable number of hours or entries.
370LM 378LM
915LM
CLOSED OPEN
Garage Door Monitor:
Security for the largest door of your garage door is designed to 4 garage doors by entering a password on a lamp, television or other appliance from lightning and power surges.
38 Monitors up to protect LiftMaster® garage door openers against damage from car, bedside, or anywhere in the...
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