Perfmored cooling maintenance checked electrical, mechanical components, dusted electrical cabinets, changed filters customer supplied filter for attic unit. Attic unit does not have back up water safety recommend to add. Recommend blower wheel pull and clean both attic and basement blower wheels are dirty. Recommend pureairx found mold in system and to improve indoor air quality. Recommend surge protection on units. Recommendstart assist kit for outdoor units. Units are cooling at this time.