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 Dianta on May 21st, 2018
My Door Is Beeping But Only Periodically. Battery Replaced Last Year. 3850pc
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Current Answers
Answer #1: Posted by Odin on May 22nd, 2018 9:00 AM
Odin
Member since:
April 10th, 2010 Points: 41,236,650
Member since:
April 10th, 2010 Points: 41,236,650
See item #8 at https://www.manualslib.com/manual/26855/Chamberlain-Security-Plus-3850pc.html?page=31.
Hope this is useful. Please don't forget to click the Accept This Answer button if you do accept it. My aim is to provide reliable helpful answers, not just a lot of them. See https://www.helpowl.com/profile/Odin.
Related LiftMaster 3850 Manual Pages
3850 Elite Series Manual - Page 1
... read this manual 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...
3850 Elite Series Manual - Page 2
...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 garage door and/or the garage door opener...INTRODUCTION Safety Symbol and Signal Word Review
This garage door opener has been designed and tested to the ...
3850 Elite Series Manual - Page 3
...Cutters Pliers
3
Hack Saw Claw Hammer Screwdriver Adjustable End Wrench Release the door. 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 avoid entanglement. Preparing your garage door
Before you begin:
• Disable locks.
• Remove any binding or sticking...
3850 Elite Series Manual - Page 5
...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...20 (2)
5 Carton Inventory
Your garage door opener is packaged in the foam.
Accessories will depend on the model purchased.
3850 Elite Series Manual - Page 6
Tighten bolts securely.
To avoid SERIOUS damage to opener, ONLY use any other bolts will cause serious damage to door opener. • Position belt over belt pulley. Use only... trolley nut on the square end. Rotate about 1/4 turn until instructed to do not run the garage door opener until the spring releases and snaps the nut ring against the trolley (Figure 1).
This extends the...
3850 Elite Series Manual - Page 7
....
NEVER wear watches, rings or loose clothing while installing or servicing opener. 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 electrocution, disconnect ALL electric and battery power BEFORE performing ANY service or maintenance.
7 Place manual release/safety...
3850 Elite Series Manual - Page 11
... the motor unit. You will need help at this point. To prevent damage to garage door, rest garage door opener rail on 2x4 placed on the trolley release arm to determine
the correct mounting height
from ceiling.
11 Do not position the opener more than 4" (10 cm) above this point if the ladder is used to...
3850 Elite Series Manual - Page 12
...or in the structural supports. 4. NOTE: DO NOT connect power to structural supports before installing the opener.
INSTALLATION STEP 5 Hang the Opener
Three representative installations are not provided. 1. FINISHED CEILING - Measure the distance from a falling garage door opener, fasten it SECURELY to structural supports of the hanging bracket to the hanging brackets with...
3850 Elite Series Manual - Page 13
... from one 398LM can be seen clearly, is properly adjusted and there are desired to operate the same garage door opener, it is between -4° F (-20° C) and 122° F (50° ...NOT overtighten.
• Replace cover by color: white wire to the W (2) and white/red wire to temperatures below -22° F (-30° C) may be connected to each garage door opener. Adjust screw for snug...
3850 Elite Series Manual - Page 14
... 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 close the lens.
• Use A19, standard neck garage door opener bulbs for approximately 4-1/2 minutes when power is in...
3850 Elite Series Manual - Page 15
.... and the ground wire to avoid entanglement. To avoid installation difficulties, do not run the opener at least 1" (2.5 cm) from electrocution or fire:
• Disconnect ALL electric and battery power BEFORE performing ANY service or maintenance.
• Garage door installation and wiring MUST be grounded.
• Reinstall the cover. NOTE: If it fit outlet...
3850 Elite Series Manual - Page 16
... electronic beam. The sending eye (with an amber indicator light) transmits an invisible light beam to the garage door opener BEFORE installing the safety reversing sensor.
To prevent SERIOUS INJURY or DEATH from inside the garage so that the sending and receiving eyes face each location to avoid drilling extra holes in masonry construction...
3850 Elite Series Manual - Page 23
... Button
Without a properly installed safety reversal system, persons (particularly small children) could be tested. Setting the UP position:
1. NOTE: Make sure the door opens high enough for a binding or sticking garage door.
• After ANY adjustments are made, the safety reversal system MUST be SERIOUSLY INJURED or KILLED by using the black and purple...
3850 Elite Series Manual - Page 24
... be SERIOUSLY INJURED or KILLED by a closing garage door.
• Too much force on floor. Door MUST reverse on contact with 1-1/2" (3.8 cm) high object (or 2x4 laid flat) on garage door will interfere with proper operation of force required to open and close (DOWN).
3. If the garage door opener cannot open and close the door (DOWN).
ADJUSTMENT STEP 2
Set the Force...
3850 Elite Series Manual - Page 28
... equipped with after pressing a button same type 3V2016 coin cells.
28 The 3V2450 lithium battery for the opener and LED lights (marked "LED and Opener Battery") should last 1-2 years.
The Proximity Sensor may cause undesired operation. Replace 3V2450 battery with FCC Standards FOR HOME OR OFFICE USE. Tested to the remote control, the LED lights turn on...
3850 Elite Series Manual - Page 30
... technician. • Check to 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. The door can then be fully closed . Once a Year • Oil door rollers, bearings and hinges. The trolley will reconnect on the emergency...
3850 Elite Series Manual - Page 31
... the opener by pulling the Emergency Release Rope. • Manually bring the door to a closed position. • Loosen the belt by a beep sounding every 30 seconds, replace the battery.
31... the garage door opener will not activate the door: • Verify your door, check diagnostic LED for balance or any obstructions. My garage door opener beeps: • A solid LED with the door, pull...
3850 Elite Series Manual - Page 32
... 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 motor unit. If motor unit activates, replace door control wires. See Adjustment section. • If the motor...
3850 Elite Series Manual - Page 33
...pressed and held for the sensors. Meaning: Battery is ready to the opener. Meaning: Battery charging from receiving remote control signals. Message
...BATTERY BACKUP ENABLED
Message
BATTERY BACKUP ENABLED
Message
BATTERY LOW BATTERY BACKUP ENABLED
Message
BATTERY BAD REPLACE BATTERY NOW SEE OWNER'S MANUAL
Message
POWER RESTORED BATTERY CHARGING
Meaning: This message will toggle on the door...
3850 Elite Series Manual - Page 38
...appliance from lightning and power surges.
38
ACCESSORIES
1702LM
Outside Quick Release:
Required for a garage with model 3850 only.
This temporary password can add a temporary password for visitors or service persons.
Includes battery. Enables homeowner to open or closed. Wireless Door Control: Push bar, light feature and auxiliary button. EverCharge® Standby Power System...
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