Originally Posted By: DWallach
What I'm *hoping* they've done is souped up their logic for "gosh, the sun is shining right on the thermostat, so maybe I shouldn't trust the temperature reading".

Somebody didn't read the manual when choosing that location for a thermostat. Or at least the manual for our current $25 thermostat clearly shows a warning against mounting where the sun can shine directly upon it.

Cheers