Encountered a thermostat located in a master bedroom on first floor of home. - not that unusual. However, the location in the room was on the wall directly behind the open door. So if the door was open the thermostat was covered. If you close the door to expose the thermostat, you cut off air flow to room, because there is no return in the room. The only return for this unit was about 30 feet away in the kitchen/living room.
I commented on the position to the homeowner and she said that she had questioned the builder about it already. The builder’s response was that the system had been computer designed and the position of the thermostat had been determined to be the “absoute optimum position.” That if she had it moved it would void all warranties on the HVAC system.
She had complaints about the comfort level in a number of rooms on this first floor.