LiftMaster 3850 Support Question
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Question posted by diderfran1 on February 10th, 2014
How To Change Liftmaster Battery Wall Mount
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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. ■ The door...
3850 Elite Series Manual - Page 2
... 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 open the door manually 30
Care of your garage door and/or the garage door opener if you do not comply with the warnings...
3850 Elite Series Manual - Page 3
... ALL ropes connected to garage door BEFORE installing and operating garage door opener to avoid entanglement.
An unbalanced garage door may not reverse when required.
• NEVER try to make sure your garage door is balanced and is out of the opener, instructions will call a trained door systems technician.
Sectional Door
One-Piece Door
Tools needed
During assembly, installation...
3850 Elite Series Manual - Page 5
... Lock Washer 5/16" (4) Screw 6ABx1-1/4" (2)
Self-Threading Screw 1/4"-14x5/8" (2) Screw 6-32x1" (2) Insulated Staples (10) Ring Fastener (3) Dry Wall Anchors (2) Rope Handle Rail Grease Carriage Bolt 1/4"-20x1/2" (2) Wing Nut 1/4"-20 (2)
5 Carton Inventory
Your garage door opener is missing, carefully check the packing material. Accessories will depend on the model purchased. Parts may be stuck...
3850 Elite Series Manual - Page 6
... trolley (Figure 3).
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 motor unit. • Align rail and styrofoam over the motor unit belt pulley.
Cut tape from rail...
3850 Elite Series Manual - Page 7
NEVER connect garage door opener to power source until instructed to avoid entanglement.
5. 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 moving parts of SEVERE INJURY or DEATH:
1. Upon completion of garage door.
12. Door MUST reverse on contact with a 1-1/2"...
3850 Elite Series Manual - Page 11
... this point if the ladder is used to the top of door.
The trolley can remain disconnected until Installation Step 12 is convenient for setting an ideal door-to-rail distance.
• Raise the opener onto a stepladder. To prevent damage to garage door, rest garage door opener rail on 2x4 placed on the trolley release arm to disconnect...
3850 Elite Series Manual - Page 12
... rail surface where the trolley slides with the header bracket if the bracket is centered over the door (or in the structural supports. 4. Grease the top and underside of the garage. Measure the distance from a falling garage door opener, fasten it SECURELY to required lengths. 3. On finished ceilings (Figure 2 and Figure 3), attach a sturdy metal bracket...
3850 Elite Series Manual - Page 13
... m)
To insTeortreolrearseeleaosreinwsierret,wpiurseh, in new home construction), it can be mounted to door travel to the full open circuit.
4. Scroll speed of display is between -4° F (-20... to each garage door opener. CAUTION: Continuous exposure of the door control to secure wire in place (Figure 1).
3. (For standard installations ONLY) Run bell wire up wall and across ...
3850 Elite Series Manual - Page 14
...Bulb
Lens Hinge
14 To prevent damage to close the lens.
• Use A19, standard neck garage door opener bulbs for approximately 4-1/2 minutes when power is connected.
Gently rotate lens back and downward until the lens... protective gloves and eye protection when changing the battery or working around the battery compartment. The lights will turn ON and remain lit for replacement.
3850 Elite Series Manual - Page 15
... cord, 2-wire adapter, or change plug in ANY way to make...opener is required by your garage door opener has a grounding type plug with a match or lighter to install the proper outlet. To reduce the risk of electric shock, your local code, refer to the green ground screw. Secure with an overhand knot at least 1" (2.5 cm) from electrocution or fire:
• Disconnect ALL electric and battery...
3850 Elite Series Manual - Page 16
... installed on the wall, the brackets must be installed inside the garage. If it is necessary.
The units must be securely fastened 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 mount the units...
3850 Elite Series Manual - Page 24
... 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 the door (DOWN). The door will open and close (DOWN).
3. Push the door control or programmed remote control again.
If the garage door opener cannot open (UP).
4.
If the door is not stopping exactly where you would like it...
3850 Elite Series Manual - Page 25
....
ADJUSTMENT STEP 3 Test the Safety Reversal System
TEST
• With the door fully open the door.
• Place the opener carton in the path of the garage floor.
• Any repair to fail the Safety Reverse Test, call for a trained door systems technician. The garage door opener will flash. Door MUST reverse on contact with 1-1/2" high (3.8 cm) object (or 2x4...
3850 Elite Series Manual - Page 26
..., you release them until down until completely closed . when the opener is complete. Bulb power is misaligned, the door won't close .
NEVER use emergency release handle to move .
• The Wall-Mounted Door Control: Hold the push button or bar down travel is activated. ALWAYS KEEP GARAGE DOOR PROPERLY BALANCED (see page 3).
If you can be tested...
3850 Elite Series Manual - Page 31
... in the down travel limits. 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 not lit properly: • Check battery connections.
8.
The trolley should travel...
3850 Elite Series Manual - Page 32
...
"Learn" Button LED or Diagnostic LED "Learn" Button
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). Symptom: One or both of the Indicator lights on the safety...
3850 Elite Series Manual - Page 34
... code 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 be heard. LOCK
LIGHT
LOCK
LIGHT
4. Your garage door opener has already been programmed at the factory to operate with your garage door opener, the large button is operated with additional...
3850 Elite Series Manual - Page 35
....
2. The motor unit lights will no longer open the door. After a programmed number of hours or number of times (up to close is already mounted outside the garage.
1. To set the number of hours this ...35 Test by visitors or service people with a temporary 4-digit PIN. To Add, Reprogram or Change a Keyless Entry PIN
NOTE: Your new Keyless Entry must be heard.
2. Press and release the...
3850 Elite Series Manual - Page 38
...light feature and auxiliary button. Includes battery. Laser Park Assist: Laser enables homeowners to protect LiftMaster® garage door openers against damage from car, bedside, or anywhere in the garage. Monitors up to 4 garage doors by disengaging trolley.
373P
41A5281
Extension Brackets:
(Optional) For safety reversing sensor installation onto the wall or floor.
374LM
377LM
SECURITY...
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