Hot Tub Tech

I have had similar problems with the 2 relay current version 97119 Hot Spring version boards. Blinking red lights. The factory is saying the customer must buy new controls. Mother board, top side control head, and heater board. If the current 2 repay heater boards fail. I rebuilt a old 3 relay board and so fare it is working fine. Hot Spring needs to go back to the original 3 relay board. Oh yea. I heard, an American supplier, that built the 3 relay boards. The American source won't sell to Hot Spring. If that is true. I wonder why. What did you do Hot Spring. Another question is. I use the same heater boards for Caldera/Watkins controls. What does it take to fix those bad heater boards? Im, just a lo life hot tub tech. I don't need all this aggravation from Hot Springs.