If you did not include a model # XXXXX your question please do on you second reply if possible,this helps us serve you faster.
can you get me the full model#? what F code is coming up. is it just F or is there more like F35 or something like that?
this has to be a board failure. these are all the normal codes for a duet, click this link. http://www.repairclinic.com/0078.asp#Duet
was just trying to look up your board but the model # XXXXX't comming up. could it be this, GHW9150PW2 its the closes I can find.
yes thank you