I'm trying to figure out why my thermostat would quit calling for heat before it reaches the setpoint. See attached screenshot of operation. Heat comes on at about 6AM and then turns off at about 7AM but it did not reach the setpoint and then it does not turn the heat on again until 8AM.

Thanks for the help!

Click image for larger version. 

Name:	Untitled.jpg 
Views:	38 
Size:	8.9 KB 
ID:	1801