RUN CAPACITORS AREN’T WHAT THEY USED TO BE. Capacitors are electrical components that enhance and improve the efficiency of electric motors. They are metal cans, which contain a metallic foil, a cardboard like insulator, and oil. A few years ago, the Environmental Protection Agency mandated "no more oil filled capacitors". Manufacturers designed a product called ‘soggy-foiled’ capacitors. These new capacitors have a high failure rate. A weak capacitor causes air conditioning units to run inefficiently. Consequently, it is essential to have annual maintenance service. To schedule service, just call us at 480-813-1700.