Our thermostat was accidently set up as and electric furnace and should have been set as gas. Now heat won't work and its cold. Primary heat fuel source under Heat Configuration will not allow us to select gas. What should we do to fix this? I can access the proper location within the app to select Gas but it will not function. Electric is selected and the options are grayed out.
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I called nest customer service yesterday. The were able to walk me through the problem by doing a factory reset on the unit and adding it back into the system a second time. It takes about 20 minutes.