Upon water was dripping from return plenum. I checked drainline and it was not clogged. It appeared that when float switches failed it saturated the airhandler insulation and finally soaked through plenum. I cut into plenum and vacuumed water from it. I vacuumed insulation inside airhandler. I flushed drainline multiple times to be sure it was draining. I poured water into pan rapidly to see if pan had a crack. It did not appear to be cracked all the water went down drainline. I rinsed all the popcorn texture off her car before putting away my hose.