E08
Himoinsa Low Oil Level in Engine Sump

Controller shows E08 and the generator shuts down or refuses to connect to load.

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Possible Causes

Oil level below minimum mark, Oil leak from sump gasket, Incorrect oil grade causing consumption, Faulty oil level sensor in sump

How to Fix / Troubleshooting

Safety: Allow engine to cool. Turn OFF generator and isolate battery negative.

  • Verify oil level: Use the dipstick to check oil level. If below minimum, top up with the correct oil grade specified for the Himoinsa engine.
  • Inspect for leaks: Check around the sump, oil filter, and oil cooler hoses for signs of leakage. Tighten fittings or replace gaskets as needed.
  • Check oil level sensor: Locate the oil level sensor on the sump. Inspect wiring and connector. Test sensor resistance or switching function according to the engine manual. Replace if faulty.
  • Reset alarm: After correcting oil level and any leaks, clear E08 on the controller and perform a test run. Monitor for recurring alarms, which may indicate excessive oil consumption or internal engine issues.
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Repair Difficulty

Easy 2/5

Required Part

Oil Level Sensor
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