Therador SEC301BB/03 F34 error

[Fritz]

Usually points to the Hall Effect fan (00440604) on top of the oven.

Replaced that and still get F34.  I'm thinking the control board, unless it's the thermal fuse (00414633).

Are there likely suspects on the control board?  All the caps look healthy as do the smaller resistors and diodes etc.

Is there a particular relay that might be susprect?

Thanks,

Fritz