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LiftMaster 8550 Support Question

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Question posted by robertkelly3930 on September 3rd, 2012

Door Won't Close Fully, 4 Blinking Lights. Both Side Lights Operating

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Related LiftMaster 8550 Manual Pages

8550 Manual - Page 1

... ......34 MAINTENANCE 34 TROUBLESHOOTING 35-36 REPAIR PARTS 37-38 ACCESSORIES 39 WARRANTY 40 The Timer -To-Close is to ensure safe operation. ■ The model number label is ONLY compatible with sectional doors. Belt Drive Garage Door Opener Model 8550 FOR RESIDENTIAL USE ONLY Write down the following information for future reference: Serial Number: Date of...

8550 Manual - Page 6

.... 7. Mount the emergency release within sight of the garage door. • out of reach of children at ) on .contact with vehicles to -Close functionality if operating either one -piece door, visit www.liftmaster.com for installation instructions. 6 Disable ALL locks and remove ALL ropes connected to garage door BEFORE installing opener to do so 8. NEVER wear watches, rings...

8550 Manual - Page 7

..., or their hardware, ALL of which are installing the garage door opener on header wall or ceiling, otherwise garage door might NOT reverse when required. • DO NOT enable the Timer-to-Close functionality if operating either one -piece door, visit www.liftmaster.com for the top edge of Garage Door 2x4 OPTIONAL CEILING MOUNT FOR HEADER BRACKET Structural Supports...

8550 Manual - Page 9

... the garage door opener To prevent damage 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. The trolley can remain disconnected until instructed. NOTE: If the door hits the trolley when it is not tall enough you will need help at this point. 4.2 Fully open the door...

8550 Manual - Page 11

.... 6.3 Rotate the lens up . or or To prevent possible OVERHEATING of all vehicles to close. NOTE: The use of short neck or speciality light • DO NOT use emergency release handle to disengage trolley ONLY when garage door is necessary to pull door open door falling rapidly and/or unexpectedly. • NEVER use emergency release handle unless...

8550 Manual - Page 17

... fully closed. To prevent SERIOUS INJURY or DEATH from closing , the door will not go into the sleep mode until activated. The sleep mode is unobstructed. The garage door opener will stop and reverse to the receiving sensor (with the garage door opener light bulb; above floor as the light bulb turns off the sensor LEDs will turn off and whenever the garage door opener lights...

8550 Manual - Page 22

... THE GREEN LED ON THE RECEIVING SENSOR IS NOT GLOWING: Make sure the sensor wire is closing, the door will reverse and the garage door opener lights will flash ten times. When the light beam is obstructed or misaligned while the door is not shorted/broken. The sensors can be aligned by loosening the wing nuts, aligning the...

8550 Manual - Page 23

... the travel. The adjustments allow you program the travel and cannot be sure fully open (UP) and close the door. The force is designed with the door's downward travel, it will stop in the open door provides adequate clearance. If anything interferes with proper operation of safety reversal system. • After ANY adjustments are used to vehicles, be...

8550 Manual - Page 24

... operate the door up and door, repeat the steps for Program the Travel, the programming has timed out. Adjustment Button. Programming is complete. The garage door opener lights ... KILLED by a closing garage door. • Incorrect adjustment of safety reversal system. • ANY adjustments are made, the safety reversal system MUST be garage door opener lights will flash twice and...

8550 Manual - Page 25

... control if the LED in the path of the door. The garage door opener will not close the door. Door MUST reverse on contact with 1-1/2" high (3.8 cm) object (or 2x4 laid flat) on the floor. 2.1 With the door fully open /close the door. When the door reverses upon contact with the board. If the garage door opener closes the door when the safety reversing sensor is misaligned or...

8550 Manual - Page 26

...operating on the right side panel of battery in 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 battery power or will take 24 hours to fully...

8550 Manual - Page 27

... the battery voltage drops too low, the battery will recharge within 24 hours. A fully charged battery supplies 12V DC to the garage door opener for an extended period of normal operation during a power outage. Battery does not have to 2 years with the garage door opener light off. The battery will not turn on battery power. • A flashing orange LED...

8550 Manual - Page 29

... on your garage door opener, see the Door Control section. TIMER-TO-CLOSE The Timer-to operate with your garage door operation. The garage door opener is equipped with up to the door closing , the door will turn on the sensor LEDs will blink 10 times. If an obstruction breaks the infrared beam while the door is fully open position, and the opener lights will not close the door if...

8550 Manual - Page 30

... power outage, cycle the garage door opener open or close your garage door from the door control and keyless entry. TTC WILL NOT work light disable the Automatic Light Feature, otherwise the light will display the Diagnostic Code. The lights will activate the garage door opener. TIMER-TO-CLOSE (TTC) (881LM ONLY) DO NOT enable TTC if operating a one-piece door. NOTE: Before enabling the...

8550 Manual - Page 31

.../on and set the time interval before door closes. TRANSMITTERS: Displays the number of the screen. NOTE: DO NOT enable TTC if operating a one-piece door. Navigation Buttons CLOCK SETUP: Set the time, choose 12 or 24 hour clock and show /hide the temperature. TTC SETTINGS (for garage door opener light to stay on the screen and the...

8550 Manual - Page 33

If not, wait for the remote control LED to see if the garage door opener light bulb blinks. The garage door opener will light. Check to light solid then slowly press and release the remote control button again. All remote control and keyless entry codes are now erased. All codes are now ...

8550 Manual - Page 34

... and consider replacing the battery to ensure the garage door opener will reconnect on the emergency release handle. Weak or broken springs or unbalanced door could fall. To replace the batteries, remove the two screws and open the remote control housing. The door can then be sure door opens and closes fully. NOTICETo complywith FCC and or IndustryCanada rules(IC...

8550 Manual - Page 35

.... 35 Troubleshooting Diagnostic Chart Your garage door opener is programmed with the and the light(s) will flash installed, connected, or amber LED is NOT lit, check the wire and connections for that sensor. See page 18 for installation. If sending sensor LED is faulty garage door opener, replace the door control. Close the garage door using the remote control or the...

8550 Manual - Page 36

... your door is open and close the door. Check for travel module are approximately travel module. My remote control wil not activate the garage door: • Verify the lock feature is not activated on the Premium Motion -Detecting Control Panel to ensure the garage door opener is binding or sticking, contact a trained door systems technician. The LEDs on the door conrol blink...

8550 Manual - Page 39

...for 5 minutes when it detects a person entering the garage. Remote Light Switch: 990LM Automatically control your lights using your garage door opener, a Security+®2.0 remote control or a MyQ™ Internet Gateway. includes a push bar to open /closed status for up to 4 MyQ™ compatible garage door openers and close the door and a lock feature for extra security. Includes...