Controller shows E24 and the generator shuts down during operation, often with black smoke.

Safety: Allow exhaust components to cool before inspection. Hot surfaces can cause burns.

• Check load: Reduce load to within generator rating and observe if E24 still occurs.
• Inspect exhaust: Check for crushed or blocked exhaust piping, clogged spark arrestor, or soot buildup in the silencer. Clean or replace components as needed.
• Turbocharger check: Inspect turbocharger for free rotation and absence of oil leaks. A seized turbo can cause high exhaust temperature.
• Air filter: Replace a clogged air filter, which can cause rich combustion and high exhaust temperature.
• Professional service: If E24 persists, have a diesel technician check injection timing and engine tuning.