Tech diagnosed main level system… customer complaint thermostat is controlling temperatures on its own without being controlled by anyone… customer stated this has happened several times, this not the first time… tech tested thermostat in heating mode as well as cooling mode… tech was unable to diagnose issue when thermostat on main level is functioning at this time… tech recommended replacing thermostat along with new furnace control board to wave any other problems with main level system… also customer wants a quote to add additional duct work to upstairs master bedroom closet and replace upstairs existing zone system and zone damper motors… tech left quote for all options… Please review email, to respond to any estimates you can do so by email or calling in to reschedule appointments. *Thanks for choosing TE Certified if you liked your technician service today don’t hesitate to leave a 5 star review!