The first thing you want to check is all your breakers and disconnects. You should have 2 breakers in your breaker panel, one that runs unit inside and one that runs unit outside. Turn both off and then back on to make sure they are not tripped. Next go to your unit inside and you want to look for a breaker on the unit and/or a disconnect somwwhere in the immediate area. If it is a breaker, reset that, If it is a disconnect, you have a lever on it or, it may have a pull out piece your going to want to pull out and inspect to make sure it doesn't look burnt. It should say "on" on it and maybe an arrow but when properly installed, you should be able to read "on" right side up not upside down. Next, you want to go to the unit outside. It should have a disconnect of the same fashion, so check it also. At this point make sure your thermostat in in the "on" or "auto", auto would be the right setting but, does the unit run? If so, is the unit outside running as well. If only the inside unit runs, you either have a bad thermostat or a bad capacitor or wire in the unit outside, it could be other things with the unit outside but, these are common items. If everything runs, and it is still not cool, again, the thermostat could be bad or it may be time for a charge. Make sure you filter is clean as well because limited air flow acn cause the unit to freeze up and not work.
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The first thing you want to check is all your breakers and disconnects. You should have 2 breakers in your breaker panel, one that runs unit inside and one that runs unit outside. Turn both off and then back on to make sure they are not tripped. Next go to your unit inside and you want to look for a breaker on the unit and/or a disconnect somwwhere in the immediate area. If it is a breaker, reset that, If it is a disconnect, you have a lever on it or, it may have a pull out piece your going to want to pull out and inspect to make sure it doesn't look burnt. It should say "on" on it and maybe an arrow but when properly installed, you should be able to read "on" right side up not upside down. Next, you want to go to the unit outside. It should have a disconnect of the same fashion, so check it also. At this point make sure your thermostat in in the "on" or "auto", auto would be the right setting but, does the unit run? If so, is the unit outside running as well. If only the inside unit runs, you either have a bad thermostat or a bad capacitor or wire in the unit outside, it could be other things with the unit outside but, these are common items. If everything runs, and it is still not cool, again, the thermostat could be bad or it may be time for a charge. Make sure you filter is clean as well because limited air flow acn cause the unit to freeze up and not work.