Parents entered wrong heat source - how to change?

[jnojazz]

My parents put in the nest learming thermostat today and entered the wrong heating type - forced air when in fact we have propane. Is there a way to change this or do they have to do factory reset?

[Frustratedddd]

See if this helps?

Settings - Equipment - Pro Setup - Continue

The reset should be straight forward if you get that far.