Hi Guys

I had what I thought was a fault PCB1 on a hitachi Ras 30 fsn. Just replaced and I'm still getting and 03 fault plus a 35 fault after a minute or so. I had already checked the obvious power and cabling and all ok. I'm not getting 5 vdc on 1,2 from the outdoor board tho. Any ideas.? All addresses are unique no duplicates, that's why the 35 is strange