Controller shows E019 Fuel Water Level High / Water in Fuel

Safety first: Diesel and water mixtures can be hazardous. Use appropriate containers and dispose of contaminated fuel according to local regulations.

• Drain water separator: Locate the fuel pre‑filter/water separator. Open the drain valve and collect water/fuel until clear diesel flows. Close securely.
• Inspect main tank: Check for signs of water in the main tank (condensation, rust). If significant water is present, the tank may need to be pumped out and cleaned.
• Check sensor: Many separators have an integrated water sensor. Inspect wiring and clean the sensor probe. Replace if the alarm persists with no water present.
• Prevent recurrence: Ensure tank vents are properly capped and that fuel deliveries are from reputable suppliers.

After clearing water and resetting the E019 alarm, run the generator and monitor for reoccurrence.