RV Repair: n821 norcold fridge, buss fuse, circuit breakers

Question
QUESTION: I checked all grounds and they are good

ANSWER: i am sorry john but it did link you to your original question
if you can explain what all is going on

---------- FOLLOW-UP ----------

QUESTION: My Norcold N821 will not work on AC mode. I have checked all fuses and circuit breakers. The only thing that seems to work is I pulled the buss fuse , cleaned it and put it back and it works for three or four days and quits again and goes to code 'A'. Its a 2003 Jayco trailer and I have all ready replaced the circuit board once part number 621267001."

Answer
http://www.thetford.com/HOME/PARTS/NorcoldIncRefrigerators/N62N82Series/tabid/49
this a good website to refer to.
i had one a while back that we had to call in with the model and serial number and they told us up jumo a couple of pins on the board to reset it