My HR-24 temp is showing 140 degrees, is this normal? Or is that on the high side? I am not sure, but the fan(s) may have quit on it. The fan(s) have been making a lot of noise over the past few weeks.
That's high. Mine is running at 111 right now.
If you reboot and the box is over the temperature limit it will not boot until it cools down.
At that point, Directv should replace the box.