SDMO
Overfueling / Incomplete Combustion
Excessive black smoke from exhaust when SDMO generator is under load.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Clogged air filter, Overloaded generator beyond rating, Faulty turbocharger on turbocharged SDMO engines, Injector wear causing poor spray pattern
How to Fix / Troubleshooting
Safety first: Operate the generator in a well-ventilated area. Avoid inhaling exhaust fumes.
- Check load level: Use the SDMO controller to verify kW/kVA. Reduce load to within nameplate rating and observe smoke reduction.
- Inspect air filter: Replace a dirty air filter element to restore proper airflow.
- Check turbocharger (if fitted): Listen for unusual whine or scraping. Inspect intake and exhaust connections for leaks. Have the turbo serviced if performance is poor.
- Service injectors: Persistent black smoke at normal load may require injector testing and calibration by a diesel specialist.
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Repair Difficulty
Hard
4/5
Required Part
Air Filter Element
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