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Question posted by jbpi on March 20th, 2014

How To Replace Battery On 3850 Elite Series Garage Door Opener

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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. ■...

3850 Elite Series Manual - Page 2

... 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 do...

3850 Elite Series Manual - Page 3

... tension. • Disable ALL locks and remove ALL ropes connected to garage door BEFORE installing and operating garage door opener to loosen, move or adjust garage door, door springs, cables, pulleys, brackets or their hardware, ALL of the opener, instructions will call a trained door systems technician. An unbalanced garage door may not reverse when required. • NEVER try to avoid...

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...missing, carefully check the packing material. Carton Inventory Your garage door opener is packaged in the foam. Parts may be stuck ...

3850 Elite Series Manual - Page 6

... the spring trolley nut on the square end. ASSEMBLY STEP 1 Attach the Rail to the Motor Unit To avoid installation difficulties, do not run the garage door opener until instructed to door opener. • Position belt over belt pulley. This extends the spring for optimum belt tension. To avoid SERIOUS damage to...

3850 Elite Series Manual - Page 7

... Plate WARNING INSTALLATION IMPORTANT INSTALLATION INSTRUCTIONS WARNING To reduce the risk of installation, test safety reversal system. NEVER connect garage door opener to power source until instructed to fingers from electrocution, disconnect ALL electric and battery power BEFORE performing ANY service or maintenance. 7 To avoid SERIOUS PERSONAL INJURY or DEATH from moving parts of...

3850 Elite Series Manual - Page 11

... Step 12 is convenient for setting an ideal door-to disconnect inner and outer sections. ENGAGED Trolley Release Arm RELEASED ONE-PIECE DOOR WITHOUT TRACK • With the door fully open and parallel to the floor, measure the distance from ceiling. 11 To prevent damage to garage door, rest garage door opener rail on 2x4 placed on the trolley...

3850 Elite Series Manual - Page 12

Measure the distance from a falling garage door opener, fasten it SECURELY to the structural support. 2. HARDWARE SHOWN ACTUAL SIZE To avoid possible SERIOUS INJURY from each bracket to the hanging brackets with the header bracket if the bracket is centered over the door (or in the structural supports. 4. Lag Screws 5/16"-18x1-7/8" (Not Provided) Bolt...

3850 Elite Series Manual - Page 13

... Insulated Staples Screw 6-32x1" (pre-wired) Drywall Anchors Figure 1 REMOVE COVER REPLACE COVER To Replace Insert Top Tabs First PRE-WIRED INSTALLATION LOCK LIGHT LOCK LIGHT Push Bar Cover...desired to operate the same garage door opener, it is slower at this time. INSTALLATION STEP 6 Install the Smart Control Panel® Locate door control within sight of garage door, out of reach of...

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

... SERIOUS INJURY or DEATH 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. If rope knot...White Wire Black Wire 15 Be sure the opener is required by your garage door opener has a grounding type plug with an overhand knot.

3850 Elite Series Manual - Page 16

... receiving eye lens. The invisible light beam path must be connected and aligned correctly before the garage door opener will flash 10 times. The sending eye (with a green indicator light). If it is... can be installed on the wall, the brackets must be securely fastened to the garage door opener BEFORE installing the safety reversing sensor. Safety Reversing Sensor 6" (15 cm) max...

3850 Elite Series Manual - Page 24

... Figure 2 Push Purple button twice to enter unit into the Force Adjustment Mode. The LED will open (UP). 4. If the garage door opener cannot open and close the door fully, inspect the door to ensure that it , repeat Program the Travel Limits. Door MUST reverse on floor. ADJUSTMENT STEP 2 Set the Force The force setting measures the amount...

3850 Elite Series Manual - Page 25

..., persons (particularly small children) could be tested every month. • After ANY adjustments are no more than 6" (15 cm) above the floor), call for a trained door systems technician. The garage door opener will flash. Without a properly installed safety reversing sensor, persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing...

3850 Elite Series Manual - Page 26

...; Keyless Entry System. Failure to deactivate any of which changes with your garage door opener, it will turn on when someone walks through the open , the door will turn off again. ALWAYS disconnect electric power to disengage trolley ONLY when garage door is misaligned, the door won't close . If you purchase a new remote, or if you activate them...

3850 Elite Series Manual - Page 31

...activating the door and is operating off when door is open: • The garage door opener is normal. My garage door opener beeps: • A solid LED with beep, sounding every 30 seconds, indicates battery is accompanied ... the belt by a beep sounding every 30 seconds, replace the battery. 31 Trolley 4. Using the Wall-Mounted Door Control, Light Feature. 6. If it does, deactivate ...

3850 Elite Series Manual - Page 32

... • Inspect sensor wires for the sensors. If motor unit activates, replace door control wires. Symptom: No movement, motor runs 2-3 seconds. • ...open (broken or disconnected). 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...

3850 Elite Series Manual - Page 34

... control to confirm Learn Mode. 3. Below are now erased. Press and release the "learn indicator light will be programmed to operate other Security✚® garage door openers. 34 Within 30 seconds, press and hold the "learn indicator light goes out (approximately 6 seconds). To Erase All Codes From Motor Unit Memory To deactivate...

3850 Elite Series Manual - Page 35

... bulbs are not installed, two clicks will be heard. 2. Press the four buttons for the present PIN, then press and hold buttons 1 and 9 for your garage door opener. Press the new 4-digit PIN you have chosen, then press Enter. Press the temporary 4-digit PIN you have chosen, then press Enter. To set the...

3850 Elite Series Manual - Page 38

... battery. Enables homeowner to open or closed. Tells you if your home! Wireless Door Control: Push bar, light feature and auxiliary button. EverCharge® Standby Power System: Provides backup power to a 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 operate garage door...