Thanks to the forum

I would like to thank all that responded to my post on how to fix an oven that cuts out.

Well with all the information provided we are now up and running.

I isolated the oven on the main board

I took the oven out of its position and removed the earth connection. 

Put the oven setting at 100 after 30mins connected the earth. It stayed on until increased the heat.

I then again isolated the main switch and disconnected the earth and increased the heat to 180 normal cooking temperature for a further 45min.reconnected the earth and it works perfectly.

Will hope it works tomorrow now.

Again thanks for the tips.

Phil55