LiftMaster 3850 Support Question
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Question posted by galshala on May 26th, 2014
How To Change The Battery On Liftmaster Wall Mounted Keypad
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Related LiftMaster 3850 Manual Pages
3850 Elite Series Manual - Page 1
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...;
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
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... 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 open the door manually 30
Care of serious injury or death if you see this...
3850 Elite Series Manual - Page 3
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... 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 see if there is any ropes connected to garage door.
• Complete the following test to avoid malfunction and damage. Carpenter's Level (optional)
12 Tape Measure
Pencil
Stepladder...
3850 Elite Series Manual - Page 5
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Carton Inventory
Your garage door opener is also listed below . Hardware for installation is packaged in the foam. Parts may be stuck in two cartons which contain the motor unit and all parts illustrated below . LOCK
LIGHT
SLmCaDrtMCootniotrnolDPeatencetli®ng Door Control Console
SECURITY✚® 3-Button Remote Control
Models 3850 (1) 3850-267 (2)
SECURITY✚® ...
3850 Elite Series Manual - Page 6
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...tight against the trolley (Figure 3). To avoid SERIOUS damage to opener, ONLY use any other bolts will cause serious damage to door opener. • Position belt over belt pulley. This extends the...until instructed to do not run the garage door opener until the spring releases and snaps the nut ring against the trolley (Figure 1). Do not use bolts mounted in top of motor unit. ASSEMBLY ...
3850 Elite Series Manual - Page 7
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You have now finished assembling your garage door opener.
READ AND FOLLOW ALL INSTALLATION WARNINGS AND INSTRUCTIONS.
2. ALL repairs to garage door control.
11. NEVER connect garage door opener to power source until instructed to the installation section. Install wall-mounted garage door control:
• within sight of the garage door.
• out of reach of children at minimum height ...
3850 Elite Series Manual - Page 9
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...your particular requirements. Optional Wall Mounting Holes
Header Wall
2x4 Structural Support
Header Bracket
CEILING MOUNT ONLY UP
Vertical Centerline of Garage Door
Lag Screws 5/16"-9x1-5/8"
Door Spring
HARDWARE SHOWN ACTUAL SIZE
Lag Screw 5/16"x9x1-5/8"
Horizontal Line
Highest Point of Garage Door Travel
Garage Door
Vertical Centerline of Garage Door
CEILING HEADER BRACKET INSTALLATION...
3850 Elite Series Manual - Page 11
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... this point. To prevent damage to garage door, rest garage door opener rail on 2x4 placed on the trolley release arm to disconnect inner and outer sections. Header Bracket
Top of Motor Unit
Top of Door
2x4 is used to determine the correct mounting height from ceiling.
11 SECTIONAL DOOR OR ONE-PIECE DOOR WITH TRACK
A 2x4 laid flat...
3850 Elite Series Manual - Page 12
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Measure the distance from a falling garage door opener, fasten it SECURELY to structural supports of the hanging bracket to structural supports before installing the opener. Fasten the opener to a support with rail grease. Operate the door manually. HARDWARE SHOWN ACTUAL SIZE
To avoid possible SERIOUS INJURY from each bracket to the hanging brackets with the header bracket...
3850 Elite Series Manual - Page 13
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![](/manualimages/7/s/liftmaster-3850-3850-elite-series-manual-62a2c66_13_e6ed.png)
...White Grey
13 If additional wall controls are no obstructions to door travel to 24 VOLT low ...on back of door control by color: white wire to the W (2) and white/red wire to each garage door opener.
HARDWARE SHOWN ACTUAL...can be mounted to secure. CAUTION: Continuous exposure of the door control to cross path of closing garage door: • Install door control within sight of door, at ...
3850 Elite Series Manual - Page 14
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... the procedure to close the lens.
• Use A19, standard neck garage door opener bulbs for approximately 4-1/2 minutes when power is in the fully open position. Release Tab
100 Watt (Max) Standard Light Bulb
100 Watt (Max) Standard Light Bulb
Lens Hinge
14
Channel
Battery
Battery Cover
INSTALLATION STEP 8
Install the Lights
• Press the release...
3850 Elite Series Manual - Page 15
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![](/manualimages/7/s/liftmaster-3850-3850-elite-series-manual-62a2c66_15_b0df.png)
.... • NEVER use an extension cord, 2-wire adapter, or change plug in ANY way to the following procedure.
RIGHT
WRONG
If permanent wiring is required by your garage door opener has a grounding type plug with an overhand knot. the white (neutral) wire to pull door open door falling rapidly and/or unexpectedly. • NEVER use emergency release...
3850 Elite Series Manual - Page 16
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... before the garage door opener will detect an obstacle in the path of its electronic beam. If installing in masonry construction, add a piece of wood at each other hardware) may interrupt the beam while the door is closing, the door will stop and reverse to the receiving eye (with a green indicator light). The mounting brackets are...
3850 Elite Series Manual - Page 24
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If the garage door opener cannot open and close the door (DOWN). Push the purple button twice to enter unit into the Force Adjustment Mode. The LED will stop flashing when the force has been programmed. Push the door control or programmed remote control again.
Door MUST reverse on contact with proper operation of force required to open and...
3850 Elite Series Manual - Page 25
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... the sensor is not traveling far enough in the down direction.
ADJUST
• If the door stops on striking the obstruction.
The garage door opener will flash.
Without a properly installed safety reversal system, persons (particularly small children) could be tested. The door must reverse on the obstruction, it is misaligned or obstructed). NOTE: On a sectional...
3850 Elite Series Manual - Page 26
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... has no obstructions to move .
• The Wall-Mounted Door Control: Hold the push button or bar down until the light goes off again.
when power is adjusted, the other hardware, ALL of which changes with your garage door opener, it will open or closed. Bulb power is activated (with the door control, the Outside Keylock, or Keyless Entry...
3850 Elite Series Manual - Page 31
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![](/manualimages/7/s/liftmaster-3850-3850-elite-series-manual-62a2c66_31_e0c4.png)
...door and is operating off when door is open: • The garage door opener is equipped with beep, sounding every 30 seconds, indicates battery is approximately 1-1/4" (3.18 cm) in particular can affect door...the safety reversing sensor beam has been obstructed. My door reverses for balance or any obstructions. Using the Wall-Mounted Door Control, Light Feature.
6. My motor unit hums ...
3850 Elite Series Manual - Page 32
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...connection or
replace the travel module. Consult Diagnostic Chart below.
1 FLASH
Safety reversing sensors wire open (broken or disconnected).
Symptom: Sending indicator light glows steadily, receiving indicator light is programmed with...LED "Learn" Button
Installed Safety Reversing
Sensor
Your garage door opener is dim or flashing. • Realign receiving eye sensor, clean lens and secure...
3850 Elite Series Manual - Page 35
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...), then press and hold the # button. LOCK
LIGHT
To change an existing, known PIN
If the existing PIN is active. Press the four buttons for your garage door opener. The door should move . The keypad will blink twice when the one person without using a ladder.
1. The keypad will work , press the number of hours or times to...
3850 Elite Series Manual - Page 38
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... homeowner to precisely park vehicles in the home with a remote.
975LM
373W
Designer Burled Walnut 3-Button Remote Control with model 3850 only. EverCharge® Standby Power System: Provides backup power to protect LiftMaster® garage door openers against damage from car, bedside, or anywhere in the garage.
SECURITY✚® 4-Button Remote Control : Includes visor clip.
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