LiftMaster 8550 Support Question
LiftMaster 8550 Support Question
Find answers below for this question about LiftMaster 8550.Need a LiftMaster 8550 manual? We have 1 online manual for this item!
Question posted by sassoraymond on April 6th, 2018
Error Code 44 Help
door strains to go up or down, so much so that it stops. readout states exsessive force, etc code 44
Current Answers
Related LiftMaster 8550 Manual Pages
8550 Manual - Page 1
...-25 BATTERY 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 Belt Drive Garage Door Opener Model 8550
FOR RESIDENTIAL USE ONLY
Write down the following information...
8550 Manual - Page 2
... tension.
• Disable 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 the left or right of balance...
8550 Manual - Page 3
... Inventory
NOTE: Accessories will be included with white and white/black wire attached: Sending Sensor (1) Receiving Sensor (1) and Safety Sensor Brackets (2)
O.
Header bracket
B. Garage door opener
K
J. Door control
M. Emergency release rope and handle H. Rail I
3
MyQ™ AND SECURITY✚®2.0 ACCESSORIES
880LM Smart Control Panel®
895MAX Remote Control
829LM...
8550 Manual - Page 4
...
To avoid SERIOUS damage to finger scratching.
HARDWARE
Mounted in the top of sprocket while
garage door opener. Cut the tape from the
garage door opener. 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 top of the
• ALWAYS keep hand clear...
8550 Manual - Page 6
... and
avoiding contact with
a 1-1/2" (3.8 cm) high object (or a 2x4 laid fl at) on properly balanced and lubricated garage door. READ AND FOLLOW ALL INSTALLATION WARNINGS AND INSTRUCTIONS. 2. Install garage door opener only on the floor. 13. NEVER connect garage door opener to power source until instructed to avoid entanglement. 5. To avoid SERIOUS PERSONAL INJURY or DEATH from ALL...
8550 Manual - Page 7
... if mounting header bracket or 2x4 into masonry.
• NEVER try to loosen, move or adjust garage door, springs, cables, pulleys, brackets, or their hardware, ALL of which are installing the garage door opener on a one -piece or swinging garage doors. You can attach it to the ceiling when clearance is out of travel clearance for installation...
8550 Manual - Page 9
... outer trolley. If the ladder is not tall enough you will need help at this point.
4.2 Fully open the door and place a 2x4 (laid flat) under the rail. The trolley can remain disconnected until instructed.
Slide the outer trolley toward the garage door opener. H11 H5
HARDWARE
H5
Clevis Pin 5/16"x2-3/4"
H11
Ring Fastener
4 Position...
8550 Manual - Page 10
... MUST be used if installing ANY brackets into masonry. Measure the distance from a falling garage door opener, fasten it SECURELY 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.
Finished Ceiling
5.1 On finished ceilings, use the lag screws
(H3) to attach a support bracket (not provided...
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 emergency release
rope through the hole in an open door falling rapidly and/or unexpectedly. • NEVER use emergency release handle unless garage doorway is clear of the end panel or light socket: •...
8550 Manual - Page 12
... Centerline of door bracket. Installation
8 Install the door bracket
Fiberglass, aluminum or lightweight steel garage doors WILL REQUIRE reinforcement BEFORE installation of Garage Door
12
HARDWARE
H10 (2)
Self-Threading Screw 1/4˝-14x5/8˝
FIGURE 2
Vertical Reinforcement
Vertical Centerline of angle iron are not intended for an opener installation door reinforcement kit...
8550 Manual - Page 21
... POWER:
OPTION A TYPICAL WIRING
1.1A Plug in the top of the motor unit (according to local code):
1.1B Be sure power is NOT connected to the opener, and disconnect power to circuit. 1.2B Remove the garage door opener cover and set aside. 1.3B Remove the attached green ground terminal. 1.4B Cut black and white wires...
8550 Manual - Page 26
... # 485LM for replacement battery. • Do NOT dispose of the garage door opener. Use a Phillips
head screwdriver to remove the battery cover on the garage door opener.
1.3 Partially insert the battery into the battery compartment with local codes for disposal instructions.
1 Install the battery
1.1 Unplug the garage door opener. 1.2 Open the light lens on the right side panel of battery in...
8550 Manual - Page 29
...activated. The safety reversing sensors do no effect the opening cycle. The sleep mode shuts the garage door opener down direction.
29 The garage door opener will move in any other than closed . the lights will stop .
If the garage door opener senses an obstruction while closing , the door will turn on your garage door operation. The safety reversing sensor must be an audible...
8550 Manual - Page 30
... Feature, otherwise the light will automatically turn off .
30 TTC can display the status of closing the door. The garage door opener will beep and the lights will display the Diagnostic Code. TTC WILL NOT work if the garage door opener is to be installed in the event of time (1, 5, 10 minute intervals or a custom setting up to...
8550 Manual - Page 31
... interval before door closes. To program a remote control or keyless entry to the garage door opener using the door control see TEMPERATURE to operate the garage door opener. SCREEN
The...operating a one-piece door.
TRANSMITTERS: Displays the number of the screen.
SOFTWARE REVISION: Displays software version information. DISPLAY ERROR: Displays any errors that have occurred. ...
8550 Manual - Page 32
... THE LEARN BUTTON
1 Locate the Learn button on the remote control that you wish to operate your remote control. The garage door opener lights will flash (or two clicks will be heard) when the code has been programmed. Learn LED
Yellow
2 Locate the Program Button on the side of your choice on the keyless...
8550 Manual - Page 33
... CONTROLS AND KEYLESS ENTRIES 1 Press and hold the learn button again until the learn LED goes out. All codes are now erased. The garage door opener will light. ERASE ALL DEVICES
1 Press and hold the learn button on garage door opener until the learn LED goes out
(approximately 6 seconds).
2 Immediately press and hold the learn button on...
8550 Manual - Page 34
... the door control or remote control. EVERY YEAR • Oil door rollers, bearings and hinges.
Replace the batteries with FCC Standards for changing the code setting...from the garage door opener rail. The garage door opener does not require additional lubrication.
Operation is CLOSED.
The door can then be sure door opens and closes fully. Do not grease the door tracks. ...
8550 Manual - Page 35
...The garage door opener will flash
shorted or reversed (amber LED) is not lit, check the wire leading to the receiving sensor (green
LED). Ensure the wires
and stops and... the garage door opener flash the diagnostic codes. 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 ...
8550 Manual - Page 36
... 1-1, 1-2, and 1-4 correct as a rope attached to page 24.
4-2
4 FLASHES 2 FLASHES The door stops while opening Obstruction, binding or Manually open : The garage door opener is equipped with a feature that will still not activate the door check the diagnostic codes to be disabled using the door control, refer to Disconnect all power, remove cover, and locate the travel , refer to page...
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