Carver Owners Forum

Kohler diesel generator shuts down with fault code RF. I replaced primary and secondary fuel filters guessing RF stands for replace filter? That has not solved the problem. I cant find RF code and what is means-

Have you checked for water flow for cooling?

It might help if you post the model of the generator.

Is there an air filter??

Post the model and look again at the display. Are you sure it isn't a UF code?

I agree check the water flow first....if flow is restricted check your strainers, impeller and possible even your intake hose from the scupper. I pulled an entire salad out of my intake hose a couple weeks ago....

Thank you for the responses. After further investigation and confirming the fireboy system was not causing the issue, the main circuit board in the generator was faulty. I was informed that you can get erroneous codes when circuit board is failing.