On my problem (the original one in the thread), replaced the board, no go replaced the freezer thermistor (which is # 3 on my tests), no go, replaced the evap thermistor (#4), and it worked, put the old board in, it still worked! Now 3 & 4 both showed a status of P before I replaced them.
I do show #1, and #5 still being bad (status of O). According to the manual I found 5 should be the freezer (but apparently it isn't). Can anyone shed some light as to where #1 and #5 are for sure? I'm assuming they are in the fridge, what harm is caused by not replacing them?