The blower motor is not working!Is there a fuse that could've blowen?

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Air conditioning was working fine 2 days ago and then all the sudden it just stopped working the blower does not work I can turn it over to heat and I can feel a little warm air coming out of the vent but it's only because it's air being forced in from outside when the window is cracked. Same thing with the air conditioner. I can turn it back over to the cold on temperature and I feel cold air coming through when the window is correct you roll up the window and there is no air coming threw the vents. Is there a fuse that could have blown that I could check on before I replace the blower motor? Please help!