Upon arrival customer stated that downstairs system was not cooling properly during the hot time. After inspection of system 9 year old gas furnace and ac and coil found that system was low on r410a refrigerant. Outdoor condenser coils were very dirty, outdoor capacitor was bad, contactor tested good. Checked indoor system, blower wheel was dirty, blower capacitor tested good, there was no flood protection in drain pan on either system in attic. Inside system was clean. Recommended leak search, adding 2 lbs r 410 a refrigerant, adding wet switch to both drain pans in attic, blower wheel cleaning for downstairs system, cleaning outdoor condenser coils, advanced Uv light protection for downstairs system. Customer approved to have leak search, refrigerant added, both wet switches for units in attic, and condenser coils cleaned today. Made all repairs for system and system is back up and cooling. Advised customer could not find a leak anywhere on equipment. Tightened shredder cores at outd