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 djsyencer on June 2nd, 2017
Garage Door Wont Close
garage door starts to come down but then stops and lights flash
Current Answers
Answer #1: Posted by Odin on June 2nd, 2017 9:36 AM
Odin
Member since:
April 10th, 2010 Points: 41,236,680
Member since:
April 10th, 2010 Points: 41,236,680
The safety reversing sensor must be connected and aligned correctly before the garage door opener will move in the down direction. Verify the safety sensors are properly installed, aligned, and free of any obstructions.
If light bulbs are flashing, the solution is different: see https://www.manualslib.com/manual/1007752/Chamberlain-8550.html?page=36#manual, third listed solution.
If light bulbs are flashing, the solution is different: see https://www.manualslib.com/manual/1007752/Chamberlain-8550.html?page=36#manual, third listed solution.
Hope this is useful. Please don't forget to click the Accept This Answer button if you do accept it. My aim is to provide reliable helpful answers, not just a lot of them. See https://www.helpowl.com/profile/Odin.
Answer #2: Posted by TheTWWW on June 2nd, 2017 6:43 AM
TheTWWW
Member since:
May 22nd, 2017 Points: 37,200
Member since:
May 22nd, 2017 Points: 37,200
Hi
Please click this link below
http://www.liftmaster.com/catalogresourcesv3/en-us/shared/files/tucmanuals/114a4665.pdf
Related LiftMaster 8550 Manual Pages
8550 Manual - Page 1
... label is located on the left side panel of your garage door opener. ■ This garage door opener is to be used ONLY with MyQ™ and Security✚®2.0
accessories. ■ DO NOT enable the Timer-To-Close feature if you are installing the garage door opener on a one -piece door. www.liftmaster.com The Chamberlain Group, Inc.
845 Larch...
8550 Manual - Page 6
... ALL moving parts of garage door. 12. NOTE: If you are installing the garage door opener on properly balanced and lubricated garage door. Door MUST reverse on.contact with vehicles to do so 8. NEVER connect garage door opener to power source until instructed to avoid accidental release. 7. ALL repairs to -Close functionality if operating either one -piece door, visit www.liftmaster.com...
8550 Manual - Page 7
... screws (not provided) to securely fasten the 2x4 to structural supports.
1.3 Open your garage, use the maximum height possible, or refer to -Close functionality if operating either one -piece door, visit www.liftmaster.com for the top edge of the door. An unbalanced garage door might NOT reverse when required. 1 Determine the header bracket location
To prevent...
8550 Manual - Page 10
... 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. Finished Ceiling
5.1 On finished ceilings, use the lag screws
(H3...
8550 Manual - Page 11
.... Tie a knot at least 1 inch (2.5 cm) from a falling garage door: • If possible, use handle to close. NOTE: The use of the emergency release
rope through the hole in an open or closed.
Trolley Release Arm
11 NOTE: If it is right side up to pull door open door falling rapidly and/or unexpectedly. • NEVER use emergency...
8550 Manual - Page 13
... (as
toward the garage door opener until the
far apart...garage door opener is hanging down too far, you may cut 6 inches (15 cm) from
with the ring fastener (H11). the door) about 2" (5 cm). 9 Connect the 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...
8550 Manual - Page 14
... gang box installations it can be seen clearly, is compatible with up to 2 Smart Control Panels or 4 of the door at the garage door opener in a later step. Use the existing holes in sight until completely closed. can be connected to either screw.
7/16" (11 mm)
PRE-WIRED INSTALLATIONS: Choose
Wall
any other Security+®...
8550 Manual - Page 17
... the full open position, and the garage door opener lights will move in the down until the garage door opener has completed 5 cycles upon power up. This required safety device MUST NOT be connected and aligned correctly before the garage door opener will flash 10 times.
Install the Protector System®
Introduction
Be sure power is closing garage door: • Correctly...
8550 Manual - Page 22
... glow steadily if they are aligned. Amber LED
If the receiving sensor is on the screen.
22
Make sure the sensor wire is closing, the door will reverse and the garage door opener lights will flash ten times. Make sure the sensor has been wired correctly: white wires to white terminal and white/black wires to the...
8550 Manual - Page 23
TIP: If anything interferes with the door's downward travel, it will stop in the open door provides adequate clearance. INTRODUCTION
Your garage door opener is adjusted automatically when you to open and close (DOWN) position. The adjustments allow you program the travel and cannot be changed. UP (Open)
DOWN (Close)
PROGRAMMING BUTTONS
UP Button
Adjustment Button
DOWN Button
...
8550 Manual - Page 24
.../or a beep is in the desired UP position
Adjustment Button until
the desired UP position. Door MUST reverse on contact with proper operation of garage door travel to flash.
* If the garage door opener lights are flashing 5 times during the steps for Program the Travel, the safety reversing sensors are unable to page 18). heard.
1.4 Press and hold the...
8550 Manual - Page 25
... [15 cm] above the floor), call a trained door systems technician.
3 Test the Protector System
3.1 Open the door. The door will not move more than an inch (2.5 cm), and the garage door opener lights will not close from a remote control if the LED in the path of the door.
Repeat the test. Place the garage door
opener carton in either safety reversing sensor is...
8550 Manual - Page 26
... garage door opener. 1.7 Wait for the green Battery Status LED to start flashing before proceeding to test the
battery. NOTE: Make sure the garage door opener is charging.
26 NOTE: The garage door opener may....
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 the garage door opener. Battery may run slower if the battery is...
8550 Manual - Page 28
... UNDER A STOPPED, PARTIALLY OPENED DOOR.
6. Weak or broken springs or unbalanced door could move unexpectedly. After ANY adjustments are made by a trained door systems technician.
13. If rope knot becomes untied, you could result in SEVERE INJURY or DEATH.
12. ALWAYS disconnect electric power to -Close functionality if operating either one-piece or swinging garage doors. NO...
8550 Manual - Page 29
... the garage door opener lights will enter sleep mode when the door is closing there will reverse. Your garage door opener has already been programmed at the factory to operate with your garage door opener, see the Door Control section. If an obstruction breaks the infrared beam while the door is fully closed and the garage door opener is broken. The garage door opener will flash 10...
8550 Manual - Page 30
... after a specified period of closing the door. The duration of the light timing can be in the event of an accidental lock out when using the garage door opener light as a work if the garage door opener is operating by pressing the push bar, each press of maintenance. Refer to resume normal TTC operation.
The lights will come on or off .
30...
8550 Manual - Page 31
... REVISION: Displays software version information. SERVICE
Press and hold the second navigation button, then press the LIGHT button to -Close feature off /on the screen and the navigation buttons. TTC SETTINGS (for garage door opener light to view the Features menu. SETTINGS
Press the navigation button below the down arrow till you see page 32. 31...
8550 Manual - Page 34
... code setting or replacing the batteryTHEREARENO OTHER USER SERVICEABLEPARTS. To replace the batteries, remove the two screws and open door falling rapidly and/or unexpectedly.
• NEVER use emergency release handle unless garage doorway is CLOSED. Push the battery out of fire, explosion or chemical burn: • Replace ONLY with 3V2016 coin batteries.
•...
8550 Manual - Page 36
..., refer to Disconnect all power, remove cover, and locate the travel , refer to page 24.
4-2
4 FLASHES 2 FLASHES The door stops while opening Obstruction, binding or Manually open and close the door. My garage door opener light(s) will not show up in the garage. The LEDs on the door conrol blink: If you have been obstructed or when the motion sensor on when the safety...
8550 Manual - Page 39
... Panel with Timer-To-Close Control: Multi-function door control with motion sensor that automatically turns opener lights on for up to open /closed status for 5 minutes when it detects a person entering the garage. Sensor can be easily deactivated when desired.
39 Remote Light Switch:
990LM
Automatically control your lights
using your garage door opener, a Security+®2.0 remote...
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