Complete 2 system furnace repair and preventative maintenance check. Changed filters. Added drain pan treatment into systems. Tested mechanical and electrical components. Found gas valve in the main level system running at high amps and weak blower capacitor (5uf). Main level system has no overflow protection. Upstairs system heating with no current issues. Found downstairs evaporator coil with bacterial buildup, cleaned evaporator coil. Systems are heating at this time.