2003 heater fan not working
 

I was replacing the heater switch console bulb (have to get the bulb at a dealer on Monday) and now the fan for the heater is not working. I checked the fuses and they are ok. Any other reason the fan is now not working? It shouldn't have anything to do with the bulb.... does it? Does the bulb (burnt out or not) HAVE to be in the socket for the fan to operate??

thx.
L