3 system tune up in Lawrenceville. Arrived on site, changed filter and cleared barometric ports. Checked ignition systems, electrical connections, amp draw and capacitance. Main level, found warn ignitor, dirty blower assembly, and corroded evaporator coil, system also only has one form of water safty. Basement unit is old as the main level with no water safty, dirty blower assembly and corroded evaporator coil. Recommended installing surge protection to all equipment as well as compressor assist kit for upstairs system. Units are operating normally, however I recommend replacing equipment for main and basement systems due to age and condition of equipment.