The people on here that will be able to help you will need to know your location in profile.
Location makes a difference with your particular enquiry as car can be euro spec or other which elimanates or adds certain components.
Was the lack of air movement a sudden failure? If so, check the strip fuse. It's just next to your hood alarm button. Remove the fuse to check it. They can develope hairline cracks and "look" good when they aren't. It is a 30 amp fuse and looks like the images below.
Jayare pointed out the most likely culprit, the fuse. The next likely cause is the regulator, followed by either the ignition switch or the blower itself. If its the blower it could be stuck, needing lubrication.
2 Years ago I unstuck and lubed the blower. I thought I was going to have to do that again! Hurray, it was the fuse, it gets pretty warm on high speed and I guess it flexes, eventually cracks. good to go---
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