Question about Kohler 12 kW Emergency Power System - 12RES-L

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I have an older Kohler Power Pro 5000kw generator with a bad rectifier (#B239244) that is no longer available. I am trying to find a replacement but so far I am coming up with nothing. Any help would be appreciated.

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Try contacting Nixon Power Services in TN. If they cannot help, you take the old rectifier out, note wiring. A rectifier is nothing special as long as it is the same current rating, if the part is truly obsolete then a good electrnic supply house can give you an equiv

Posted on Nov 16, 2013

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Posted on Jan 02, 2017

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SOURCE: wiring schematics

Kohler has an entire technical library on their website. Go to Kohler.com and you will find it. good luck

Posted on Jan 21, 2009

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Try disconencting the remote start wires between the transfer switch and the generator, if ot still does it you have a bad control board. If it stops, then check the transfer switch for correct wiring of utility and generator power wires, also check with an ohm meter if the run contacts in the transfer switch are closed, that would indicate loss of sensing, or bad board

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Wiring schematics


Kohler has an entire technical library on their website. Go to Kohler.com and you will find it. good luck

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