Manufactures recommend that consumers get their heating and cooling systems checked yearly in order to maintain warranty – once in the spring before using your air conditioner and once in the fall before using your furnace. In the winter season, the breaker for the air conditioner should be switched to “off.” Most A/C compressors have a crankcase heater that runs 24 hrs a day in the off cycle. Switch on the breaker in the spring, 24 hours prior to using the cooling system for the first time. This helps warm up the oil that has been sitting over the winter season. Spray the condenser fins once a year with a garden hose prior to using the cooling system. Clean air conditioners will release unwanted heat more easily. Clean out drain fittings and hoses. Build-up can cause condensation to overflow. If your system has a condensate pump, cleaning it once a year will help prevent future blockages.