Question about Kohler 14resa 14kw Home Emergency Backup Generator

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I have a locked rotor fault message.

The generator will not start and the display reads locked rotor. What should I be checking? Have already checked the battery and connections.

Posted by jwogaman on


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KJ Fitz

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I had this fault show this morning. Very alarming, as we have a typhoon coming theough tomorrow!

Turned out to be an easy fix. When I hit start the solenoid engaged but nothing moved. Then I saw the fault message and thought "Large $$$$!"

It was just a bad 12 Volt battery, and when it couldn't crank it threw the fault code. I replaced the battery, pulled the 3 fuses on the control panel (mine is the 20 Kw model), and the codes cleared, and she fired right up.

The advice here and on a couple other sites about powering down the panel to clear fault codes saved me a lot of time, money and aggravaion, not to mention a freezer full of food (knowing the Guam Power Authority, and knowing typhoons, the power WILL go down tomorrow.

Posted on May 14, 2015

  • KJ Fitz
    KJ Fitz May 14, 2015

    By the way, the battery showed 14.1 volts, but apparently lacked the amperage to crank that big boy.



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dan turkstra

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SOURCE: My 18RESL Kohler Propane Generator ran for 8.5

You have to reset it because it locked out on on under frequency. Just pullout the fuse on the control panel and then reinstall it a couple of seconds later. Now it will reset the fault codes. Hope that helps.

Posted on Dec 02, 2010


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