I have the same problem. People say the thermal probe (ntc) is either short cutted or open cutted, let's say broken. In my case the failure shows up during the spin cycle at some point. When the failure shows up valves are opened and water flows in.
I have measured the ntc and got a value of approx. 15Kohm at 21°C. The value is going down when heating up the ntc. So I think it is ok.
There must be another problem regarding F-03. Maybe some electronical? Something with the motor?
Vim
June 2007