Try unplugging the unit and waiting a few which many times resets the board.
Thank you. I disconnected the 220vAC on the unit inside & reconnected in 5min, no change. With your suggestion I opened both 220vACs, inside & outside including the control PCbd plugin terminals, shorted the PCbd terminals with aluminium foil(to clear memory). Visually cked Pcbd, reconnected Bd,outside 220vAC & inside 220vAC. Unit full operational for 14 days(and counting). Your advice works. thank you.
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