Hi Dave,
When I turn it on, I do see a row of green lights as you describe.
However, regardless of which button I press P or start, neither does anything.
I believe that it’s possible to reset or get into test mode by keeping ‘start’ pressed when turning on. I also believe the water softening settings can be accessed by holding P when turning on. Neither of these steps seem to be working either.
Its almost as though the buttons have somehow become disabled / disconnected. Is this feasible or pointing towards a control board issue?
Thanks
Gary