Checked drain, no stopages detected Bottom of AHU & supply plenum are soaked & sweating Vacumed as much water as possible from out of the AHU POSSIBLE CRACK OR VOID IN PAN Fan to be set to ON for 2 to 3 weeks in effort to dry out unit & supply plenum also recommend higher cooling demand temp settings if possible If not dry in 3 weeks this indicates suspicion of crack or void Homeowner to monitor any drying process Further noted observation; the HRU is leaking water next to the ODU