Is it possible the thermostat was installed upside down? People have done that in the past.
i.e. 6 o'clock vs. 12 o'clock orientation.
https://www.youtube.com/watch?v=Sozt3jcczC0
i.e. 6 o'clock vs. 12 o'clock orientation.
https://www.youtube.com/watch?v=Sozt3jcczC0