Second floor system: Condensate safety switch was tripped, suspect system froze up during the event in question Reset the wet switch sensor Adjusted airflow, temp drop across the evaporator was too high. It was running a 27⁰ delta, it is now running a 22⁰ delta Suspect either someone bumped the set point too low and forgot to adjust it back or the thermostat got stuck. Got in the attic and traced every inch of the thermostat wire to rule out rodent damage that could have caused a short circuit. No damage to the wiring was found. When adjusting the set point for cooling, we recommend no more than two degrees of change, especially in extreme hot weather and cold weather, as well. Cold outdoor Temps with excessive run time will cause freeze up of the evaporator coil. More than a 2⁰ swing in extreme hot weather will make the system run all day and never get the space down to set point until night time. If the system appears to be stuck on (room temperature is way below set point i