It appears that the element has failed on the Baumatic oven and that the element needs to be replaced. There are 4 screws holding on the rear plate of the oven which covers the fan and element. On inspection the element had broken so was no longer a continuous loop. A replacement element was £25.
|Baumatic Oven Not Heating Up - Element replacement|
The element is straightforward to fit and is attached by 2 screws that are easily accessible.
Once the element is replaced then the rear plate can be fitted back with the 4 screws again.