I have a Temp-mizer control panel for my a/c which is acting up. It works for sometime giving cold air and then stops for sometime. Technicians are recommending to change the control panel- Model- HV-52H and Serial #31883QF. Look forward to suggestions to get this board or resolve the issue.
If you were to wire the high speed cooling fan speed to constant power that may buy you some time.
Ecco Supply may sell you a replacement control board.