Question

Truma S 3002 blower not working on auto or manual, lots of heat, what can this be?, is there a fuse? just stopped

Answer

This would normally be a problem with the control switch, our part 128063. It could also be the small printed circuit board on the fan housing or the fan itself has failed.
Firstly remove the front cover of the fire and make sure that the cable is correctly attached to the control switch.