Performed ac diagnostic Fair Oaks. On a 12 yr trane split heat pump. Found bad dual capacitor causing unit not to turn on, also recommend replacing hard start kit, out of range. Also found ac power had blown a fuse. And that was most likely due to the wasps that built there nest inside the unit. Challenge is breaker panel is blocked by shelves, tried to reset breaker multiple times finally got it to flip Tested system after installing new dual capacitor, new hard start kit, and 1 new fuse. Also tried to close holes in disconnect to stop wasps from coming back.