I have Raypak 2100 265A with digitla controls. The LCD on the old board is failing. It flickers badly then goes out completly. the LCD is soldered to the board. I got a new replacement board. The new board has the ignition build it. I read the instrctions and installed the board with a new thermistor and new pilot assemlbly. The new board is giving me a GVO error. I reinstalled the old board and it still works (badly). I measured the voltages at the gas valve and they are different with the new board but I dont know what to do next. Is it a bad board? What else can I check?
Thanks for the help