Air Conditioning problem
2005 Hyundai Tuscon 6 cyl Four Wheel Drive Automatic 188K miles

I have been having problems with the blower for the heat and a/c. I have checked all fuses.... the thing that puzzles me the most is the blower almost always works in the mornings and sometimes in the afternoons but more times than not it will not work in the afternoons when it is extremely hot. There were a couple days when the temp did not get hot and the blower worked all day. When it does work the blower seems to blow strong so I am not sure if there is another fuse somewhere that I haven't checked or if the blower motor is about to go. Any assistance in this matter is greatly appreciated.

Thanks