Hi,
I have an AEG fan oven model B8871-4-m. The PNC no is: 944 185 057. The oven sometimes works fine but often cuts out either when operating or shuts down once the oven is turned off but the fan is still on cooling. Each time error code F4 comes up.
F04 is the oven temperature sensor being either out of circuit or short circuit. It will need testing with a test meter – you should get a reading around 600ohms at room temperature.