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DSE controllers show this as a text alarm on the display, not as a numbered code.
An emergency stop button has been pressed or the emergency stop input is active. The DSE controller has immediately shut down the engine and will not allow restart until the emergency stop is reset and the fault cleared.
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The emergency stop must be reset (usually by pulling or twisting the button) and the fault cleared on the DSE controller. Check for multiple e-stop locations.
DSE emergency stop input is configurable but typically wired as normally closed (N/C) for fail-safe operation. An open circuit triggers emergency stop.
Send us the code or alarm and what the generator is doing, and one of our engineers will help you diagnose it.
Search other controller alarms and engine fault codes, with troubleshooting steps, in Generator Oracle.
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A fault code names a symptom, not a cause. Our engineers have written the diagnostic sequence they use on site for this class of fault — ranked causes, ordered steps with the reading expected at each one, and the point at which to stop and call someone.
8 diagnostic steps · intermediate · qualified electrician
8 diagnostic steps · intermediate · technician