I've had my TJ for about 8 months now. The A/C and heater both worked great until about a month ago. I turned the air on and it wasn't cooling off. I thought maybe it needed to be charged. However, about 5 minutes later, it sounded like it stopped blowing all together. I put my hand by the register and could barely feel a little flow. When I tried to adjust the fan speed, it is stuck in one spot. you can move the dial, but it has a lot of resistance and goes right back to the same spot once you let go. I have never seen this happen before. Has anyone heard of this happening?