My home is under construction, and HVAC has already been installed. There is no power in the house yet, so the other day, the basement flooded after strong rains. There were about 3 inches of water, so it entered the bottom of the furnace and sat there for a number of hours. A small portion of the fan drum was submerged, as was the bottom of the filter, but the control board and the motor hadn't been submerged.
I was hoping to get some opinions, as to how bad of a situation this is, for long term longevity of the unit and ability to get warranty service in the future? I have a RUUD upflow modulating furnace. My installer doesn't seem to want to deal with it, and think it'll be fine. I'm more worried about what happens 5 years down the line, vs. what happens in the next 6 months. Recommendations?