UPDATE: I figured out how to get into the control area and found the transformer and fuse. Fuse is good but no 24 VAC output but also nothing on the input. Located power to the heater and discovered there's no 240 or 208 even when I heard the fan running. The only thing that makes sense that is it is using just L1 or L2 and finding it's way to ground to get 110. Other than that I am baffled. BTW, I double checked with another meter. Maybe I lost a leg from the breaker or contactor. Heading to 100 deg today so I will look at that tomorrow.