Air conditioners features spot cooling features SPST cooling for large areas where cooling of entire area is not practical. A dedicated spot cooling there most controls the unit on this application. These air conditioners can also be used in smaller areas for room cooling. A control panel provides ease of use and contains a self-diagnostic function and display, showing operating modes,room and display,showing operating modes,room and set temperatures, and faults. Of an abnormal operation occurs,a visual display of the fault is shown. Caster wheels are included for easy portability.