. Check amperage in fan motor. Test & adjust safety controls. Inspect contactors, & relays. Check and adjust belts. Check bearing for wear. Adjust blower components. Lubricate all.... Flush the condensation lines to avoid flooding or water backup. Check amperage in fan motor. Check the need or a coil cleaning. The evaporator coil will collect dirt. This dirt... tablets to prevent gunk from forming and clogging the drain pan. Check amperage in fan motor. Lubricate all moving parts. Add anti-corrstion treatment to wiring. Check the need...