Hi,

I installed a new Craftsman GDO #139.53918D 3 months ago.

For the last 3 weeks, the door has been stopping mid way up or down.

I have reprogrammed each remote and wall unit, but the door only works a few times before stopping mid way again. After the door stops, the remotes will not work for several hours.

I called the teh 800 number. They stated that the problem sounds like it is due to the logic board.

They are sending a new one.

Does it sound like the logic board is causing this problem?

Is the board easy to switch out?

Does anyone have instructions on how to do this, and a link to a website?

Thanks.