The cooker was working fine until we had to move it. I got it to the new house reconnected it and now the main oven will not heat up. The top oven and hobs are still working fine and the fan works on the main oven. Also there is an intermittent fault on two of the hobs. The only serial no i can find on the unit is TFC 3340-31. Do you have any suggestions and where could i find a service manual or schematic.