Ritetemp Programmable Thermostat

Moved into the house in April, has never had to turn on the fire (live in AZ). Set the thermostat programmable ritetemp 6025 shortly after po treatment of air in the attic and the house runs on electricity, no gas. There was a thread created four very simple. Fan comes on and blows, but without heat. Yes, I have it on the heat setting. Tried to ON and Auto. A / C worked like a champ all summer. Double check the installation of the thermostat, everything is connected correctly and that all cables are connected. This is the first time I run the heating function in the house, ideas before I call a "professional"?

You have to see if there is an electric heating element and check continuity through it.