Hi guys,
Got a dover dmc-1a. The door starts to open and then just kinda stalls. With a little push to initiate movement, its starts to open again. I can't tell what is causing the problem. Cleaned sills and checked door clearance. Replaced board first and then motor. Both resulted in the same problem carrying over. I've done the start up sequence for the doors. They cycle but never seem to accept the pulse count. What am I missing?