When the whisper power 8kw marine generator is shut off there is a long loud [10seconds] noise from the air conditioner s/water pump.I have tried adjusting the voltage cut out point and also disabled the ups .Thinking that i need the generator to disconnect faster from the quattro? 24/8000.Disconnecting the shore power does not create this problem.I want to connect auto start but until I resolve this loud noise i am stuck .Can anyone help me please?