I have Craftsman Model an garage door opener model 139.53919 with the battery back up. I reset the pin for the out side mounted remote opening box. Since then the garage door does not stop closing, it keeps trying to close and the bar bows up it is pressing down so hard. I checked the safety protocall that is supposed to stop of something in the way. That does not work either. I just keep pushing down. I spend over an hour with the instruction manual trying to set the up and down level. IT will not accept the programming, and my garage clicker for the car no longer helps... any ideas?
Because you had just changed the PIN for the keypad I would remove the battery in it and see if that makes a difference. It's a wild leap I know but.
If that doesn't change anything I think your logic board has failed.
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