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Kohler 12RES / 18RES — Resetting Controller after a Fault Shutdown

Testing & diagnosis · DC-RET controller

For the Kohler 12RES / 18RES, from the Kohler operator's manual.

Applies to: Kohler 12RES, Kohler 18RES, Kohler CH 740 engine, Kohler CH 980 engine

Before you start

  • Always identify and correct the cause of a fault shutdown before resetting the controller.

Procedure

  1. Move the generator set master switch to OFF/RESET.
  2. Disconnect the generator set from the load using the line circuit breaker or ATS.
  3. Identify and correct the cause of the fault shutdown.
  4. Start the generator set by moving the master switch to RUN; test operate to verify the cause is corrected.
  5. Move the master switch to OFF/RESET.
  6. Reconnect the generator set to the load using the line circuit breaker or ATS.
  7. Move the master switch to AUTO for startup by remote transfer switch or remote start/stop switch.

Full service-parts list: Kohler 12RES →, Kohler 18RES →

Source: Kohler operator's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

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