Your AC’s circuit breaker may have been tripped:Find your breaker box and look for the circuit labeled “air conditioner”Try flipping that circuit to “off” and then “on”Give your air conditioner a couple minutes and see if it comes on nowDid that solve your problem?YES NOThis can be Caused by your Thermostat:Solution:Make sure your thermostat is turned OnSet 3 degrees below room temperatureTurn Cool, not fan or heatIf the thermostat screen is blank, then the battery is dead. Replace the battery.Did that solve your problem?YES NOYour Air Filter May be DirtyCheck yours and change if visibly dirtyDid that solve your problem?YES NOIs your outdoor unit running?Yes NoMake sure power is getting to the furnace Try this:Check your home’s electrical panel. Flip the furnace’s circuit to “off” and then “on” again.Look for a switch (like a light switch) near your furnace and make sure it is set to “on”.Yes No