On the new to me boat we just got, there is a two 5-Ton Chillers feeding the chiller loop system - AquaAir is the system / brain. One chiller is brand new (Ocean Breeze). We use a sea chest to feed these We have been have many faults.. Low Pressure Refrig / High Pressure Refrig / Flow Switch. We tried our best and paid a couple 1000 to have West Palm Beach techs tackle this.. They said we were good Descaled, tested, etc. Its been fault out non stop while underway... Same 3 faults listed above.. At night at the Marina is seems to be okay? Sea Chest was cleaned on Tues.... What could make it get not get good water flow while underway?