Strange problem, before I get crazy on this thing just wanted to get another opinion, the flashing d indicates and open safety device such as limit switch, chain tension switch or pit switch. I found 5 switches (2 upper limit, 1 lower limit, chain tension and switch up top for an access panel) and all seem to be testing properly as far as opening and closing during actuation. Small burn spot on the main control board on a 38K resistor and above the 15v dc transformer however the resistor tests ok and its still giving the 15v out. Ive done numerous resets as well. Other thing i noticed is one side of the chain is kind of twisted, much more than what I would consider to be normal. The stopped making these units and parts are pretty much non-existent at this point. Any suggestions before I send this board out for checking/repair?
Thanks so much
Michael
Michael
