Nope, not really in the B13. The blower gets direct power separately from the fuse box connection (see diagram for Blower Blue/Red connection). The blue/white wire controls the blower speed by applying resistance from the fan resistor. But the fan motor still gets the high amperages.. I dont think the power amps reaches the switch b/c of a built-in diode in the resistor. But if the resistor is bad/blown, its possible to also fry the switch...
Agreed.. The fan resistor also gets very hot due to the current amps going thru it too... Thats why the new resistor was redesigned to a smaller resistor panel with better internal heat-resistant components (from part # 27150-62J00 to # 27150-62J01 to # 27150-62J60).
How did your blower resistor fall out of the blower??