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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?
Another clue is that the frequency measured at the pump drops to 45hz immediately the generator is stopped and then slowly [10seconds] and loudly returns to the correct 60hz [quiet]
OK I fixed it by lowering generator output so the no load hz is 61 and the full load hz is 59
Then I removed wide frequency as a choice.
