Check to see if your air conditioner isn’t cooling your home: Your air Filter Any device that removes impurities through a straining process. " data-gt-translate-attributes="[{"attribute":"data-cmtooltip", "format":"html"}]">filter  is clogged up. Your exterior unit is filthy. Your Thermostat A thermostat consists of a series of sensors and relays that monitor and control the functions of a heating and
cooling system. " data-gt-translate-attributes="[{"attribute":"data-cmtooltip", "format":"html"}]">thermostat  is on. The circuit breaker in your home has tripped.