12-19-25 Lower level offices are cold, outside air temperature is 43° Check the hot unit for the first floor. It is working check the high limit thermostat in the Rucker’s office that was satisfied. In the office showing Stephen so the operation of the stat and all of a sudden the thermostat blocked out and wouldn’t come back on even new batteries. I installe temporary thermostat heat only. I’m going to replace the thermostat with a new setback thermostat and also relocated into the hallway as a better idea of the office space this will be done on a separate ticket at this time. The system is working.