|
|
Post by hazegray on Jun 11, 2021 11:37:49 GMT -5
I have a 2015 35SC with a 5kw Kohler generator.
I’ve been having a continuous problem when starting the generator the first time only. The gen starts fine, normal crank up time, runs for 15-30 seconds and then shuts down, always with the same fault code:10.4 which I believe is an over voltage fault.
I clear the fault, re crank the gen and it works fine all day and it handles a full load. Next day….same problem. Drives me crazy. I do admit that I haven’t run the generator very much, it’s 6 years old with 12 hours on it. Now I try to run it everytime when I go to the boat just to keep it “exercised” from lack of use.
I’ve had the boat techs look at it (scratching heads) and even call Kohler 800 line with zero luck.
Any ideas?
|
|
|
|
Post by hawker63 on Jun 12, 2021 7:49:51 GMT -5
I had posted last week that I had an issue with my 7.3 and water flow. While trying to figure it out, I was trying to start if, ran for 10 seconds and shutdown with same fault you indicate. I think my issue was that I didn’t turn off the generator breakers so it was trying to start under some load. Not sure if you have the same issue on the first start that there’s som load and the generator doesn’t have a chance to stabilize. Maybe on the second start it has overcome some of the normal startup sequence and can support some electrical demand?
|
|
|
|
Post by hazegray on Jun 13, 2021 11:59:37 GMT -5
I saw your post about your 7.3 gen.
I’m usually really diligent about making sure all the circuit breakers and the generator switches are off prior to cranking the gen. I do however keep the shore power hooked up to the boat and it’s powered, but the main circuit breaker panel is off. Maybe the live shore power is doing something to cause the gen to shut down on the first crank.
I’ve come to terms with the problem and just resigned myself that I have to reset the fault and restart to have the gen run.
Boats….gotta love’em.
|
|
|
|
Post by gofast24 on Jun 17, 2021 10:43:03 GMT -5
I had posted last week that I had an issue with my 7.3 and water flow. While trying to figure it out, I was trying to start if, ran for 10 seconds and shutdown with same fault you indicate. I think my issue was that I didn’t turn off the generator breakers so it was trying to start under some load. Not sure if you have the same issue on the first start that there’s som load and the generator doesn’t have a chance to stabilize. Maybe on the second start it has overcome some of the normal startup sequence and can support some electrical demand? Main breakers at AC panel should be left on shore power, turn on engine room blowers, then start gen, let run for 5 minutes or so, turn off all AC loads, then "transfer" from shore to gen circuits. Again, interesting, Kohler got out of the gasoline powered gen set business several years ago  |
|
|
|
Post by hazegray on Jun 17, 2021 13:32:27 GMT -5
Ok I’m going to try that. Going to the boat tomorrow, wish me luck.
Thanks
|
|
|
|
Post by hazegray on Jun 19, 2021 11:51:38 GMT -5
Didn’t work. I left the main AC breaker on, fired up the gen and it quit after 15 secs. Re set the fault code and it worked fine.
|
|
|
|
Post by gofast24 on Jun 21, 2021 10:17:17 GMT -5
Ok I’m going to try that. Going to the boat tomorrow, wish me luck. Thanks good luck |
|
|
|
Post by gofast24 on Jun 21, 2021 10:19:27 GMT -5
Didn’t work. I left the main AC breaker on, fired up the gen and it quit after 15 secs. Re set the fault code and it worked fine. So you have to go into engine room to re set fault code every time you want to run gen set? That would drive me bananas! |
|
|
|
Post by xixp on Jun 24, 2021 12:18:24 GMT -5
My Kohler 7.5 ekd (sc35 2016) used to give me all kinds of random errors.
at start up or it used to randomly stop without errors whatsoever until Kohler replaced the Control module with a new one running SW Version 1.7 (i used to have 1.5).
I would ask a Kohler dealer to upgrade your Sw version if you are not running 1.7 .
|
|
|
|
Post by gofast24 on Jun 25, 2021 10:12:20 GMT -5
My Kohler 7.5 ekd (sc35 2016) used to give me all kinds of random errors. at start up or it used to randomly stop without errors whatsoever until Kohler replaced the Control module with a new one running SW Version 1.7 (i used to have 1.5). I would ask a Kohler dealer to upgrade your Sw version if you are not running 1.7 . Agree with xixp! Also, or Westerbeke 7.0 with 1200 hours never a problem, just change oil/filter, plugs, water pump impellor, great smooth running, quiet (no sound enclosure required) 1800 RPM internally counterbalanced set but no longer available  |
|
