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LiftMaster 8550 Support Question

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Question posted by mrmacmaster on January 2nd, 2013

Error 42

my garage door did not close and I have to manually close the door. then all i see in the panel control is error 42

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Related LiftMaster 8550 Manual Pages

8550 Manual - Page 1

... BACKUP 26-27 OPERATION 28 FEATURES 29 DOOR CONTROL 30-31 REMOTE CONTROLS 32-33 TO ERASE THE MEMORY 33 TO OPEN THE DOOR MANUALLY ......34 MAINTENANCE 34 TROUBLESHOOTING 35-36 REPAIR PARTS 37-38 ACCESSORIES 39 WARRANTY 40 The Timer -To-Close is ONLY compatible with sectional doors. Belt Drive Garage Door Opener Model 8550 FOR RESIDENTIAL USE ONLY Write down...
8550 Manual - Page 2

... of balance, call a trained door systems technician. 4. If your garage door and/or the garage door opener if you do not comply with the cautionary statements that accompany them carefully. If there is out of the door center. Disable locks and remove any ropes connected to check for binding or sticking. When you see this manual. Read them .
8550 Manual - Page 3

... Hardware H14 Screw 6AB x 1-1/4" (2) H15 Screw 6-32 x 1" (2) H16 Drywall Anchors (2) H17 Insulated Staples (10) Door control M. Garage door opener K J. Safety labels and literature H L M J N O I . The images throughout this manual. Overview/Carton Inventory NOTE: Accessories will be included with white and white/black wire attached: Sending Sensor (1) Receiving Sensor...
8550 Manual - Page 4

...NOTE: ONLY use ONLY those bolts/fasteners mounted in the garage door opener H1 (3) Hex Screw #8x3/8" (Packed with hex screws (H1). . HARDWARE Mounted in the top of sprocket while garage door opener. Assembly 1 Attach the rail to garage door opener, use the bolts removed from the garage door opener. Place the garage door opener on the packing material to prevent H1 To avoid...
8550 Manual - Page 6

... contact with a 1-1/2" (3.8 cm) high object (or a 2x4 laid fl at) on the floor. 13. Place manual release/safety reverse test label in SEVERE INJURY or DEATH. 3. To be made by a trained door systems technician BEFORE installing opener. 4. Install garage door opener only on wall next to cables, spring assemblies and other hardware MUST be enabled ONLY...
8550 Manual - Page 7

... the garage door. 1.2 Extend the line onto the header wall above the high point. You can attach it to the ceiling when clearance is in your garage, use lag screws (not provided) to securely fasten the 2x4 to structural supports. 1.3 Open your door to the highest point of travel clearance for installation instructions. 1.1 Close the door and...
8550 Manual - Page 9

... is raised, pull the trolley release arm down 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. H11 H5 HARDWARE H5 Clevis Pin 5/16"x2-3/4" H11 Ring Fastener 4 Position the garage door opener To prevent damage to disconnect the inner and outer trolley...
8550 Manual - Page 10

... bracket to required lengths. (not provided) H4 Finished Ceiling H4 Unfinished Ceiling 5.4 Attach the end of each hanging bracket to 5.5 Attach the garage door opener to the 5.6 Remove the 2x4 and manually close the the support bracket with appropriate hanging brackets with the header bracket. Below are three example installations. The instructions illustrate one of...
8550 Manual - Page 11

...If it is right side up to disengage trolley ONLY when garage door is 6 feet (1.83 m) above the top of the end panel or light socket: • Use ONLY A19 incandescent or compact...CLOSED. NOTE: The use emergency release handle to close. Tie a knot at least 1 inch (2.5 cm) from a falling garage door: • If possible, use of the emergency release rope through the hole in an open door...
8550 Manual - Page 12

... threading screws (H10). (Figure 2) • Alternately, use on your door's construction: Metal or light weight doors using a vertical angle iron brace between the door panel support and the door bracket: • Drill 3/16" fastening holes. The best solution is needed for lightweight garage doors (fiberglass, aluminum, steel, doors with 5/16"x2" carriage bolts, lock washers and nuts...
8550 Manual - Page 13

... the garage door opener until the far apart as possible) and attach using the clevis pin (H6). Attach with the ring fastener (H11). Select two aligned holes (as far apart as possible) and attach using the clevis pin (H7). CORRECT Straight Door Arm (Groove facing out) Curved Door Arm INCORRECT Straight Door Arm Curved Door Arm 9.1 Close the door...
8550 Manual - Page 14

... at the garage door opener in a later step. The wires hole and drill a 5/32 inch (4 mm) hole. (3 mm) to protrude from a closing garage door. H14 H15 DRYWALL 14 To prevent possible SERIOUS INJURY or DEATH from the wall. on the back of the door at a minimum height of 5 feet Install the door control within sight of the door control. children cannot...
8550 Manual - Page 15

.... To insert or release wires from the end of the wire near the garage door opener. 7/16" (11 mm) H15 GANG BOX 2.3 Connect the wire to the red and white terminals on the garage door opener. DRYWALL H16 H14 2 Wire the door control to the garage door opener HARDWARE H17 (10) Insulated Staple 2.1 Run the white and red/white wire from...
8550 Manual - Page 17

... flash 10 times. To prevent SERIOUS INJURY or DEATH from closing , the door will stop and reverse to the full open position, and the garage door opener lights will enter sleep mode when the door is NOT connected to the receiving sensor (with the garage door opener light bulb; The garage door opener will not go into the sleep mode until activated. Safety...
8550 Manual - Page 19

...on both sensor brackets so they will be the same distance from both sensors to the garage door opener. RED WHITE WHITE GREY 19 Attach the wire to the wall and ceiling with the ...from the terminal, push in the sensor bracket and attach with a screwdriver tip. The lens on the garage door opener. Separate the wires. HARDWARE H17 H17 (10) Insulated Staple 7/16" (11 mm) 2.3A Insert...
8550 Manual - Page 20

...5B Insert the wires connected to the white safety sensor wires to the white terminal on the garage door opener. Yellow Yellow (for example) Purple (for example) Purple RED WHITE WHITE GREY 7/16" ...White/Black Safety reversing sensor wires Purple (for example) Pre-installed wires 2.4B At the garage door opener, strip 7/16 inch (11 mm) of the wires previously chosen for each end of ...
8550 Manual - Page 21

... white wires and strip away 1/2" (1 cm) of electric shock, your local code, refer to the following procedure. To avoid installation difficulties, do not activate the garage door opener at this time. To reduce the risk of insulation, 3" (7.5 cm) before spade terminals. 1.5B Remove the power cord from electrocution or fire: • Be sure...
8550 Manual - Page 31

... and set the time interval before door closes. PROGRAM: Add remote controls, MyQ™ devices, an extra remote button to operate the garage door opener. SCREEN The main screen displays the time, temperature, and current battery charge (if applicable). TTC SETTINGS (for garage door opener light to the garage door opener using the door control see TEMPERATURE to the descriptions below...
8550 Manual - Page 35

... and/or reverses travel module. See page 18 for installation. The garage door opener clicks but no Bad logic board movement Replace the logic board. 1-5 1 FLASH 5 FLASHES The opener runs approximately 6-8" Communication error to the receiving sensor (green LED). Close the garage door using the remote control or the door control. Reattach wire or replace wire (22 gauge wire) as needed...
8550 Manual - Page 36

... not activate the garage door: • Verify the lock feature is closing , stops and Obstruction, binding or If your garage door opener and reprogram the remote control(s). Refer to page 2 . Excessive vibration on page 27. These are additional troubleshooting issues that turns the light on when the safety reversing sensors have an Smart Control Panel installed and the TTC...

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