I have a customer who says his t-stat reads a couple degrees low. He'd like to have it bumped up by 2 degrees. When I remote in, I can see the calibration adjustment in the advance settings for the device...and it sure looks like I can just bump it up and set it, but I inquired with the tech chat fella and he said no, it must be done change from on-site.

The customer is an hour and it looks like I could fix this in 2 seconds...anyone have experience with that?