Check the Blades
Before you hit the air conditioner power button, take a look at your ceiling fan and make sure that it’s not inadvertently
heating up your home. The blades are at an angle: During summer, they should rotate counterclockwise, blowing air down to cool you . In winter, they should go clockwise, circulating hot air in the room. To change rotation, turn off the fan, find the little switch on the side, usually below the blades, and flip it.