Belling 910 Electric Cooker Grill switch ?

Belling Farmhouse 910 electric cooker. Grill switch stopped working, so the fan would work, but not the element. Although the element was tested as okay.

A new replacement switch, (Diamond H code 41ER102C1P), Belling part number 082607918 was fitted; but now the element works, but not the fan and the pilot light does not come on. Where can I get a wiring diagramme, showing where each lead should be fitted?