What's the normal temp on the counters screen on a 722. Mine shows a min/max of 102/136 with an average of 127. It is a replacement for my oldd 722 which died the end of Jan.
Sorry. There is no way to reset the temperature readout. When I added an external fan, it took about a month for the temperature readings to stabilize.
Before I added the fan my HD average temperature was 129. After adding the fan the average temperature dropped to 107.
Only Dish software engineers know for sure, but it appears the temperature readouts are running values covering a week to 10 days, maybe more and there is no way to reset them, they sort of reset themselves as old values mature out of the windows and current values are added.