Kohler generator problem

[horseplay]

I have a 2007 Kohler 5ECD with 580 hours. Recently it would either start and then shut off or crank and not start and give the low voltage UU code, or a couple times it gave the low coolant, LOC code. I checked all fluids, replaced spark plugs, cleaned magneto, clean the battery connections at the solenoid, cleaned the zinc anode in manifold, flushed the sea water system and removed old impeller debris from the heat exchanger, and checked the impeller. Finally the generator ran for about 10 minutes then shut down. It gave a ER72 code and after reseting the generator and trying to start it will not crank and gives the ER72 code. Checked fuses and the F6 fuse was bad so I replaced it. Tried reseting and starting and still will not crank and gives the same ER72 code. Anyone have any ideas? Earliest tech support is a week away.

 

[jcoakley01]

Did you change fuel filter


Sent from my iPhone using Tapatalk

 

[skolbe]

On my 2007 - 320 - with a 5ECD when I had a similar issue, I had debris caught in the elbow above the seacock. It would get water but not enough to cool it. Has happened on my boat about 5 times. Usually after a recent rain.

 

[horseplay]

Fuel filter has been changed. I have flushed the sea water system.