Home » LiftMaster » Garage Door Openers » LiftMaster 3850

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!

LiftMaster Overview Questions Manuals Reviews Videos Research

Question posted by carlbash on August 20th, 2013

How To Change Battery Liftmaster Keypad

The person who posted this question about this LiftMaster product did not include a detailed explanation. Please use the "Request More Information" button to the right if more details would help you to answer this question.

I Know the Answer!

I have the same question
Request More Information

Current Answers

There are currently no answers that have been posted for this question.
Be the first to post an answer!

Remember that you can earn up to 1,100 points for every answer you submit. The better the quality of your answer, the better chance it has to be accepted.

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

... 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...

3850 Elite Series Manual - Page 3

.... • Disable ALL locks and remove ALL ropes connected to garage door BEFORE installing and operating garage door opener to avoid malfunction and damage. Raise and lower the door to see if there is any ropes connected to garage door. • Complete the following test to make sure your door binds, sticks, or is out of balance. If balanced...

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...1/4"-20 (2) 5 Accessories will depend on the model purchased. Carton Inventory Your garage door opener is packaged in the foam.

3850 Elite Series Manual - Page 6

... Threaded Nut Shaft Ring Nut Ring Slots Figure 2 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 the square end. Cut tape from rail, chain and styrofoam. • REMOVE...

3850 Elite Series Manual - Page 7

... of 5 feet (1.5 m). • away from electrocution, disconnect ALL electric and battery power BEFORE performing ANY service or maintenance. 7 Place entrapment warning label on wall next to the installation section. Install garage door opener 7 feet (2.1 m) or more above floor. 7. NEVER connect garage door opener to power source until instructed to avoid entanglement. 5. Mount emergency...

3850 Elite Series Manual - Page 11

... determine the correct mounting height from the floor to garage door, rest garage door opener rail on 2x4 placed on the trolley release arm to -rail distance. • Raise the opener onto a stepladder. Header Bracket Top of Motor Unit Top of Door 2x4 is convenient for setting an ideal door-to disconnect inner and outer sections. Do not...

3850 Elite Series Manual - Page 12

... be different. Grease the top and underside of the rail surface where the trolley slides with 5/16"-18x1-7/8" lag screws. 5. Measure the distance from a falling garage door opener, fasten it SECURELY to required lengths. 3. Figure 1 Measure Distance Bolt 5/16"-18x7/8" Lock Washer 5/16" Nut 5/16"-18 Structural Supports Lag Screws 5/16"-18x1-7/8" Figure...

3850 Elite Series Manual - Page 13

... functional. To prevent possible SERIOUS INJURY or DEATH from a closing garage door. CAUTION: Continuous exposure of door control by color: white wire to the W (2) and white/red wire to each garage door opener. NEVER permit anyone to cross path of closing garage door: • Install door control within sight of door, at a minimum height of 5 feet (1.5 m) where small children cannot...

3850 Elite Series Manual - Page 14

... light bulbs. ALWAYS wear protective gloves and eye protection when changing the battery or working around the battery compartment. Light bulb size should be A19, standard neck only. The use halogen bulbs. 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. Then...

3850 Elite Series Manual - Page 15

...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...is required by your garage door opener has a grounding type plug with ALL local electrical and building codes. • NEVER use an extension cord, 2-wire adapter, or change plug in ANY way...

3850 Elite Series Manual - Page 16

... the safety reversing sensor. Safety Reversing Sensor 6" (15 cm) max. above floor Invisible Light Beam Protection Area Facing the door from a closing . The units must be connected and aligned correctly before the garage door opener will stop and reverse to clip onto the track of its electronic beam. Safety Reversing Sensor 6" (15 cm) max...

3850 Elite Series Manual - Page 24

... flashing when the force has been programmed. Push the door control or programmed remote control. The door will open and close (DOWN). 3. The LED will flash quickly. 2. If the garage door opener cannot open and close the door fully, inspect the door to close the door (DOWN). The door will close the door. 1. ADJUSTMENT STEP 2 Set the Force The force setting measures...

3850 Elite Series Manual - Page 25

... or KILLED by a closing garage door. The door will not move more than 1" (2.5 cm), and the opener lights will not close the door. Safety Reversing Sensor 25 Safety Reversing Sensor Without a properly installed safety reversing sensor, persons (particularly small children) could be tested. The garage door opener will flash. NOTE: On a sectional door, make sure limit adjustments...

3850 Elite Series Manual - Page 26

...initially plugged in sight until completely closed . The opener lights will reverse. ALWAYS keep garage door in ; ALL repairs to garage door opener BEFORE making ANY repairs or removing covers. 15....the opener is misaligned, the door won't close when the beam is adjusted, the other hardware, ALL of which changes with any remote, follow the instructions in a partially open ...

3850 Elite Series Manual - Page 31

... outer nut until the trolley spring is equipped with a security light feature. If battery status LED is low. • If a red LED remains on my motor unit: The safety reversing sensor must be connected and aligned correctly before the garage door opener will not turn off of any binding problems. • Refer to 5 turns...

3850 Elite Series Manual - Page 32

.... 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 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...

3850 Elite Series Manual - Page 34

... with a non-rolling 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 glow steadily for programming your opener to operate other Security✚® garage door openers. 34 Within 30 seconds, press and hold the button on any...

3850 Elite Series Manual - Page 35

... after it has learned the code. Press the four buttons for 10 seconds. This feature has been activated at the factory. The keypad will work , press the number of your garage door opener. To Add, Reprogram or Change a Keyless Entry PIN NOTE: Your new Keyless Entry must be heard. 3. USING THE "LEARN" BUTTON USING THE...

3850 Elite Series Manual - Page 38

...✚® 3-Button Mini Remote Control : With key ring and fastening strip. Includes battery. Tells you if your home! Monitors up to 4 garage doors by adding additional sensor modules. 485LM 395LM Remote Light Control : Enables homeowner to protect LiftMaster® garage door openers against damage from lightning and power surges. 38 ACCESSORIES 1702LM Outside Quick Release...