HVAC Thermostat Resource
(Visalia, CA, USA)
Your answer was to check the wire connections in the thermostat. My niece's boyfriend (who is not handy) installed the thermostat.
When I checked the wires I found that he had wired the hot wire to W2 instead of to RH. I rewired it to RH as shown in your diagram and now everything works. Thank you so much.
It took me an hour to find your site but well worth it. You saved me a ton of money. I am especially happy because I am a woman an no electrician you can be sure.