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Troubleshooting Garage opens and closes with wall unit but both units are flashing and remotes don't work?

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Check the batts, all batt contacts and wires. then carefully remove cover , and check the antenna leads. look for broken solder joints. most all electronic repair shops will have a signal generator , as well as a reciever to check if you have the right signal ..out.. or if it simply needs adjusting. hope this helps ... dollar store sells soldering irons

Posted on Jan 04, 2014

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Posted on Jan 02, 2017

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SOURCE: keypad lights flash, wont open with code. Wall button and remote work.

You need to do a remote and opener re synch, because your rolling synch codes were lost when you replaced the batteries. Go to manufacturers web site for re program instructions.

Posted on Aug 12, 2009

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1 Answer

My craftman garage door wall unit will not open the garage door. The light flashes 5 times on the unit and then repeats itself. What does this mean and how do I fix it.


check all wired connections, check all wires to insure no nail or staples have nicked them. check troubleshooting section of manual for codes possible circuit board. it is either a liftmaster or genie sold under the craftsman name

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I have a craftsman 1/2hp that stopped working. There is a small green light on the back of the opener that flashes five times and then stops for a second and then repeats the flashing. It may be model...


You don't say but I am going to assume the door is stuck in the open position. Loosen the chain enough to relieve the tension on the trolley. Now run the opener until the door closes. While the door is closed locate the 'up limit' control on the side of the motor unit. Turn this control 2 full turns in the opposite direction of the arrow printed on the cover. Tighten the chain.

Jun 03, 2011 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Grage door blinking yellow, click and won't open with anything.


TRY RESETTING THE UNIT BY UNPLUGGING IT FOR ABOUT 5 MIN.

IF WHEN YOU PLUG IT IN THE REMOTES STILL DON'T WORK TRY TO REPROGRAM THEM.
IF STILL HAVING TROUBLE--
COUNT THE FLASHES - GOTO LIFTMASTER.COM DOWNLOAD A FREE PDF FOR A SIMILAR UNIT (THE MODEL NUMBERS ARE DIFFERENT BUT THE CODES ARE THE SAME).
HOPE THIS HELPS


Jan 24, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage Master 1/3 HP 1997 Door Working, not responding to Remote


I have the exact same situation, except my model (139.53607) is older than yours and does not even have an LED. Remotes only works after after shop light goes off (5 minutes or so), but wall button works fine. Did call Sears Service and the tech told me the logic board is probably shot. Don't want to waste money on service call so I'll probably have to buy a completely new unit in the Spring and go through the winter without the use of a remote.

Jan 24, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Liftmaster garage door opener will only work at wall unit


check electric saftey beams. shovel blocking them. dirty. aligned (LED on in each unit)

Jan 12, 2009 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

Garage door only opens with wall unit


a component in the wall unit is failing , that makes the conection happen when the remote signal is recieved , ( it is recieving the remote signal but not sending it out to the control circuit for the motor )

Dec 29, 2008 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage Door only opens with wall unitq


The unit is in the lock mode, push and hold the lock button in for about two seconds and the green LED should stop flashing. Your remotes should work.

Dec 29, 2008 | Sears Craftsman LiftMaster Chamberlain...

14 Answers

Sears craftsman 1/2 hp garage door troubleshooting


My garage door opener will start to close then stop and go back to the open position. If I put pressure on the door as it is closing sometimes it will close all the way and sometimes it will return to the open position. Can you help me. Thanks pbstation771@verizon.net

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