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Blinking light in a lift master 1155-4 1/2 hp garage door opener. Why?

The light that blink is the manual control in the wall. The remote control does not work.

Posted by Anonymous on

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6 Suggested Answers

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Posted on Jan 02, 2017

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SOURCE: Sear garage door wall mount contol light keeps blinking

Hold the button with the lock icon in for 3 seconds. This should toggle the unit off vacation mode and your remotes will work.

Posted on Jun 01, 2009

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SOURCE: professional series, lift master 1/3 hp

Check to see if the small light in the wall pad is blinking. If so press and hold the button with the lock icon for 3 seconds.

If this isn't the case your receiver may have failed. The wall button works without the receiver;

I would remove the logic board and look for loose or missing traces on the printed circuit board.

Posted on Nov 14, 2009

  • 3 Answers

SOURCE: Lift-Master garage door opener Model 1045-6 1/3 hp

Most residential garage door openers have a max. amount of cycles they can run per hour. Thus the difference between a residential opener which only needs to be opened a few times a day vs. a commercial opener which needs to open 10-20 times and hour. This could be your problem, you may be running too many cycles too soon. This would explain why it seems to work again after unplugging the power. You're resetting the unit. Hope this helps.

Posted on Apr 01, 2008

  • 1 Answer

SOURCE: sears craftsman 1/2 hp garage door troubleshooting

I've got a similar problem. The green light is flashing on the unit. I can here a click when I try either the remote or wall mount switch, but no movement.

FWIW our wall switch has a lock and a light switch and I can't get the light to go on either.

The door moves freely when disconnected from the opener.

My gut tells me the logic board is fried. What I'd really like to find is some sort of trouble shooting guide - Is anyone aware of any trouble shooting information on these lifts?

Posted on Aug 24, 2008

  • 1 Answer

SOURCE: The wall button has a green light that is blinking

this just happened to us today as well. the wall pad has three buttons: one large back-lit button pad to open it and a lock button and a light button. the open button was blinking quickly and would open the door, but the car remotes did not work. I found that by pushing both the "lock" and "light" button at the same time for about 3 or 4 seconds, the back-lit "open" pad stopped blinking and went to steady green. I went back to the cars and checked the remotes there. both opened the door.

hope this helps someone out there

Posted on May 03, 2009

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2 Answers

The light on the Garage door blinks but doesn't stay on.


Three blinking lights & door won't close by Candi
(Winston-Salem, NC)
Garage door will not open and close with remotes. Three blinking lights occur when we try to close door. What does this mean? It is a Linear unit.
I will assume you mean that your garage door will open with your remote but will not close. It should close if you press and hold the wall control button until the door is fully closed.
If that is the case, the 3 blinking lights indicate that your garage door's infrared safety beams are not properly aligned.
1) Check that the operator has power. The green lights on the sender and receiver should be lit.
2) If the receiver's green light is on, but the red light is off, the receiver has power but is not detecting the infrared beam from the sender. The red light might flash when the beam is partially detected. This can be caused by
mis-alignment or something blocking the beam.
Adjust the safety beam sender and receiver while watching the receiver's red light (stay out of the beam while aligning it). When the red light stays on, the beam is aligned and your garage door should operate normally.
http://www.linearcorp.com/pdf/manuals/LCO75.pdf
NOTE: If the receiver's red light remains off, check for:
1) Dirt on the receiver's lens,
2) Sunlight shining into the receiver's lens,
3) A short in the safety beam wiring (from staples or at the operator terminals).

Dec 02, 2013 | liftmaster Garage Door 1/2 Hp

1 Answer

Master lift remotes suddenly won't work. Wired panel button works opening and closing door.


Make sure the light in the wall control is not blinking. If it is press and hold the lock button on the wall control for 3 seconds.

Feb 11, 2011 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

I have a 1/2 hp craftsman opener. Remotes work fine. Wired wall unit has a blinking light on the open button and will not work Lock pad and light pad work but not the operate pad.????


Try pressing and holding the lock button for 3 seconds to stop the light from blinking. Your wall control may be bad. Usually when that light is blinking it is the remotes that will not work.

Jul 02, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

The green light on the wall switch is blinking constantly yet it works to open/close the door. The remote does not work. Any suggestions?


Press and hold the lock button on the wall control for 3 seconds. The light will stop blinking and your remotes will work.

May 19, 2010 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

Professional series, lift master 1/3 hp, the remotes will not operate door but door will operate from wall pad


Check to see if the small light in the wall pad is blinking. If so press and hold the button with the lock icon for 3 seconds.

If this isn't the case your receiver may have failed. The wall button works without the receiver;

I would remove the logic board and look for loose or missing traces on the printed circuit board.

Nov 14, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage door don't open


On the wall control press and hold the button with the lock icon for 3 seconds. The blinking should stop and your remotes will once again work.

Sep 15, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage Door won't close


It sounds like the door sensors have been bumped or somehow gotten misaligned. Tweak them until the light on each one is lit and not blinking. They must be pointed at one another.

May 30, 2009 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

Hi I have 1/3 hp liftmaster garage door opener that will not open from the remotes but will open with button on wall. I think it is a reciever problem?? any suggestions?/


reset your remotes and your main transmitter after removing and replacing the remote batteries (these use rolling codes that change each time you operate the door) the procedure for doing this is listed on the liftmaster website

Apr 30, 2009 | Sears Craftsman LiftMaster Chamberlain...

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