Find another ventilation system on the shady side of the house or, if this is impractical, place it on the north or east divider. The thought is to keep it far from the direct beams of the sun. Likewise ensure there's a tight seal around the unit. Try not to utilize the aeration and cooling system any longer than is important, and don't cool rooms that are empty. Keep the aeration and cooling system off amid the day. On the off chance that you need to get back home to a cool house, purchase a clock. Associate the aeration and cooling system through the clock. This can be set to begin a half hour before you return home. Permit the aeration and cooling system to "relax." Keep draperies and furniture far from grilles and aviation routes. Change or wash the air channel once every month amid the mid year months. Clean the condenser and evaporator once every year. On the off chance that the unit ices on warm days, it might mean the refrigerant is low. Refilling ...