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Help. Kohler 12Res Generator

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Posted by Dr Jackal on September 26, 2011, 1:29 pm
 
Stationery Kohler 12Res located outside house. This unit is for electrical
outages only; it is not used 24/7.

It had a bad breaker on the generator itself.  The generator tech didn't
have a replacement with him, and so he provided a "bypass" temporary fix.

1) Will this band-aid fix cause any problems with overload, assuming I
don't use the unit for washer, dryer, air conditioning, or electric range,
but is connected to everything else including hot water heater?

2) The service co. is notoriously slow and I want the breaker replaced
ASAP. Can the breaker be replaced by an electrician, or does he need to be
a specialist with experience in dealing with the Kohler panel (inside
house) and automatic transfer switch?  Thanks.

Posted by vaughn on September 26, 2011, 2:43 pm
 


For a better shot at getting an answer from folks who actually know your
generator, take your question to the Smokstak Kohler forum.
http://www.smokstak.com/forum/forumdisplay.php?f%

Vaughn




Posted by Jack on September 26, 2011, 4:01 pm
 
Thanks, Vaughn, I registered and it looks like they do a manual review
of the applications.  Probably take some time.

Posted by Neon John on September 26, 2011, 7:52 pm
 

Can't address that particular model, as I have a Generac 10kW
Guardian.  Mine is rated at 42 amps max output.  The breaker is 60
amps.  You do the math.

I've inadvertently overloaded the unit (power fail with everything
electrical including the stove turned on) to the point where the
engine almost stalled before the electronic protection shut it down.
The breaker never moved a millimeter.

My conclusion is that the breaker is there only because the code
requires it.  It *might* also offer some protection if your ATS
physically broke and let line current feed into the generator with the
generator stationary.

I'd want the breaker replaced but I'd not get my bowels into an uproar
over it.  

As far as who can work on the unit, in mine I don't see anything so
complicated that a competent master electrician could not fix.  In
this case, getting the part would be the challenge.  This breaker is
not like a breaker panel breaker.  It has screw terminals on both the
line and load sides.

John

Posted by Ron Rosenfeld on September 26, 2011, 8:37 pm
 

I have found that with my Kohler 12RY, that is definitely the challenge.  Kohler
seems to change configurations about every ten minutes and frequently, the only
way to know what kind of part is being used is to have a dealer ask Kohler after
you supply him with the data plate information, at which point they will sell
you the part at full retail plus a markup (and not provide information as to
what might be an acceptable, lower-cost substitute).

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