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LiftMaster 8550 Support Question

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Question posted by Anonymous-60115 on May 22nd, 2012

My Liftmaster 8550 Opens By Itself

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Related LiftMaster 8550 Manual Pages

8550 Manual - Page 1

... you are required to ensure safe operation. ■ The model number label is located on the left side panel of the garage door opener are installing the garage door opener on a one -piece door, visit www.liftmaster.com for future reference: Serial Number: Date of Purchase: ■ Please read this manual and the enclosed safety materials carefully! ■...

8550 Manual - Page 2

... ALL locks and remove ALL ropes connected to garage door BEFORE installation and operating garage door opener to avoid entanglement. 5/32 3/16 5/16 12 To prevent damage to garage door and opener: • ALWAYS disable locks BEFORE installing and operating the opener. • ONLY operate garage door opener at 120 V, 60 Hz to your door binds, sticks, or is out of balance, call...

8550 Manual - Page 3

... manuals are for reference and your garage door opener. Door bracket D. Sprocket cover and screws K. Door control M. Safety labels and literature H L M J N O I . Depending on the garage door opener model purchased. Pulley and bracket C. Garage door opener K J. Trolley G. The images throughout this manual. Straight door arm A B CF G D E F. White and red/white...

8550 Manual - Page 4

... to prevent H1 To avoid possible SERIOUS INJURY to garage door opener, use the bolts removed from the garage door opener. and styrofoam. 1.3 Fasten the rail with hex screws (H1). . opener sprocket. 1.5 Attach the sprocket cover over the • Securely attach sprocket cover BEFORE sprocket. from moving garage door opener: 1.1 Remove the two bolts from the rail, belt, operating...

8550 Manual - Page 6

... MUST reverse on.contact with vehicles to -Close functionality if operating either one -piece door, visit www.liftmaster.com for installation instructions. 6 To be caught in garage door or opener mechanisms. 9. NEVER connect garage door opener to power source until instructed to avoid entanglement. 5. Place manual release/safety reverse test label in SEVERE INJURY or DEATH. 3. To avoid...

8550 Manual - Page 7

...you need to -Close functionality if operating either one -piece door, visit www.liftmaster.com for the top edge of the garage door. 1.2 Extend the line onto the header wall above the...one -piece or swinging garage doors. If you are installing the garage door opener on wall or ceiling), use the maximum height possible, or refer to loosen, move or adjust garage door, springs, cables, pulleys...

8550 Manual - Page 9

... (H5) through the holes in the header bracket and rail. 3 Attach the rail to garage door, rest garage door opener rail on 2x4 placed on top section of door. 4.1 Remove the packing material and lift the garage door opener onto a ladder. NOTE: If the door hits the trolley when it is not tall enough you will need help at this...

8550 Manual - Page 10

... (H9) and nuts (H8). Concrete anchors MUST be connected to the structural supports before installing the garage door opener. 5.2 Make sure the garage door opener is aligned with the bolts (H2), lock door. For ALL installations the garage door opener MUST be used if installing ANY brackets into masonry. header bracket. (not provided) H2 H9 H8 10 The instructions illustrate...

8550 Manual - Page 11

... are above the floor and secure with a match or lighter to disengage trolley ONLY when garage door is 6 feet (1.83 m) above the top of the light lens and rotate the light... rope through the hole in an open or closed. Tie a knot at least 1 inch (2.5 cm) from a falling garage door: • If possible, use emergency release handle unless garage doorway is necessary to cut the emergency...

8550 Manual - Page 12

...: • Drill 3/16" fastening holes. Note correct UP placement, as the horizontal brace. Drill 5/16" holes through the door and secure bracket with your garage door manufacturer for an opener installation door reinforcement kit. A horizontal and vertical reinforcement is to check with 5/16"x2" carriage bolts, lock washers and nuts (not provided). (Figure 5) NOTE: The...

8550 Manual - Page 13

...) and lock washers (H9). H11 H7 9.3 Attach the curved door arm to the outer pulling the emergency release handle. CORRECT Straight Door Arm (Groove facing out) Curved Door Arm INCORRECT Straight Door Arm Curved Door Arm 9.1 Close the door. Select two aligned holes (as toward the garage door opener until the far apart as possible) and attach using the...

8550 Manual - Page 14

... from ALL moving parts of closing garage door: accessories. NOTE: Older LiftMaster accessories and third party products are connected at (1.5 m), and away from 1.2 Connect one wire to door travel. HARDWARE H14 (2) Screw 6ABx1...H16 GANG BOX are used so the correct wires are not compatible.Your garage door opener is properly adjusted, and there are no obstructions to each of the ...

8550 Manual - Page 15

... the screw and slide down into place. RED WHITE WHITE GREY PRE-WIRED INSTALLATIONS: When wiring the door control to the garage door opener H17 make sure you use the same wires that are connected to the garage door opener. Attach the wire to the wall and ceiling with the staple as this may cause a short or...

8550 Manual - Page 17

... LED). Safety Reversing Sensor 6" (15 cm) max. The sleep mode shuts the garage door opener down direction. above floor Invisible Light Beam Protection Area 17 Safety Reversing Sensor 6" (15...aligned correctly before the garage door opener will move in the down until the garage door opener has completed 5 cycles upon power up. NOTE: For energy efficiency the garage door opener will light. as ...

8550 Manual - Page 19

... 7/16" (11 mm) 2.3A Insert the white wires into the grey terminal on the garage door opener. RED WHITE WHITE GREY 19 Install the Protector System® 1 Install the Safety Reversing Sensors... the position of wires. Insert the white/black wires into the white terminal on the garage door opener. Attach the wire to the wall and ceiling with a screwdriver tip. Twist the white...

8550 Manual - Page 20

... connected to the white/black safety sensor wires to the white terminal on the garage door opener. Twist the like-colored wires together. 2.5B Insert the wires connected to the white safety ...sensor wires to the grey terminal on the garage door opener. Insert the wires that you choose the same color pre-installed wires for the safety...

8550 Manual - Page 26

.... 1.6 Plug in the garage door opener. 1.7 Wait for the green Battery Status LED to start flashing before proceeding to fully charge. Battery Backup To reduce the risk of FIRE or INJURY to persons: • Disconnect ALL electric and battery power BEFORE performing ANY service or maintenance. • Use ONLY LiftMaster part # 485LM for replacement...

8550 Manual - Page 32

... Control: Press the button on the garage door opener. The garage door opener lights will flash (or two clicks ...liftmaster.com. Keyless Entry: Enter a 4-digit personal identification number (PIN) of your choice on the side of the remote control. Then press the ENTER button. Learn LED Yellow 2 Locate the Program Button on the keyless entry keypad. Remote Controls Your garage door opener...

8550 Manual - Page 37

... - If you have the model number of the garage door opener. Tucson, AZ 85706 For installation and service information call: 1-800-528-9131 Or visit us online at: www.liftmaster.com Before calling, please have access to : The Chamberlain Group, Inc. 6050 S. Country Club Rd. for 8 foot door Belt - If you are calling about a Troubleshooting...

8550 Manual - Page 39

...885LM 892LT/894LT 2 & 4 Button Learning Remote Controls: Works with LiftMaster® garage door openers manufactured since 1993. Includes battery. SECURITY+®2.0 Motion Detecting Control Panel: Multi-function door control with LiftMaster® garage door openers manufactured since 1993. Garage Door Monitor: 895MAX Monitor open and close them from anywhere in the home...