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I have a Craftsman Door Opener Model #139 53975SRT1 1/2 HP the wall mounted unit push button works great, but the small lite began blinking last week and then my remote stopped working. I got a new battery for the remote, but it still doesn't work. How can I fix this?
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If the small light in your wall control is blinking it is in the lock mode. Press and hold for 3 seconds the button with the icon of a lock. This will toggle the lock function off.
Check your door sensors. They have probably been bumped. Tweak them until they are pointed at one another and the small light on each one is lit and not blinking.
The only procedure I have ever followed is to press the learn button and then enter the code, and not do anything else. I think your last step of holding the button until the light goes out is clearing codes as fast as you enter them. Just stop after you enter your code and let the learn mode time out on its own. That should do it.
And don't put your head through the wall. It just causes more headaches.
does logic board on motor have a small pushbutton or dip slide switches? If pushbutton, push it for 10 seconds. let do. panel light stop blinking? Unit somehow got into lock mode, even though you do not have lock button. If this has stopped light from blinking, you now have to code remotes and or keypad back in. Push the little buton for 1 second and push a remote. Light bulbs on unit should blink. Take next remote (or keypad) and repeat this sequence for each one. Let me know. If you have safety beams, liftmaster should help you. w/o beams they will not support.
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 [email protected]
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