Cummins PowerCommand Error Code 12

Cummins Generator Critical System

Model: PowerCommand | Code: 12

Applicable Systems
PowerCommand

Symptoms

Shutdown - Overspeed. The engine speed has exceeded the maximum safe limit and the engine has shut down.

Possible Causes

  • Governor failure causing uncontrolled speed
  • Fuel system malfunction

Troubleshooting Steps

  1. Step 1: Check the governor and fuel injection system
    Governor is not responding correctly
  2. Step 2: Inspect for fuel system mechanical issues
    Fuel system component is faulty

How to Reset

To reset: Fix the governor or fuel system, then reset the controller.

Source: Cummins Power Generation Control Manual, Cummins Inc.

Category: Generator