Eng good
check coolant leaks with richard.unable to find stbd bilge ingress.not anything to do with air con.
prt aft header tank gasket replaced.main eng valves reset .genset service ,prt fuel filters changed,stbd oil filters changed.
all anodes checked.batteries checked and tested.prt forward eng turbo reseated.coolant flushed .heat exchanger cleaned.
stbd aft mixer exhaust elbow and 3way valve replaced.new bonding wire.
batteries on,sea cocks open.
hand over jet and eng rooms in the state that you found them please.