Got mine home about a week ago and have used it about 3 times. The first time was on myself and I was super happy the next day when I did my sister's hair. A week later I washed my hair and was going to use my dryer to style my hair. When I had done half of my hair, it completely stopped blowing warm air. I checked the settings and let it rest, but nothing worked, checked the filter etc. but nothing helped. Let it rest overnight but still no warm air is coming. What should I do?