Can I fix my Smeg SUK62MFX oven?

I have had my Smeg SUK62MFX Dual oven about 2 years so its just out of warranty....

The fan asst oven cuts out when it gets hot. The clock goes off and the fan stops, it sounds like the cooling fan still works and the top oven and the gas hob still work. Once the oven has cooled the clock comes back on flashing 0.00 and has to be set. Once the clock is set the oven works as normal until it gets hot again and the we repeat the process.

From what I have read it sounds like it could be the thermostat or the cut out. If so, can I fix it?