SpaceAce
The wiring diagram for the range with the model number you provided does not show any other fan but the convection. If you have the wiring diagram which came with the range and you can post it, it will help a lot. You can find it if you pull out the bottom drawer, somewhere on the frame. Also I need the complete serial number of your range.
- Here are the break down diagrams for the Thermador range
Model RDF30QB S/N 9708 & UP
Gene.