SDMO Incomplete Combustion / Low Cylinder Temperature

Excessive white smoke from exhaust, especially on cold start, with rough running.

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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

Faulty glow plugs on SDMO diesel engine, Low compression due to engine wear, Water contamination in fuel, Incorrect injection timing

How to Fix / Troubleshooting

Safety first: Run the generator in a ventilated area. Avoid prolonged operation with severe misfiring.

  • Check glow plug operation: Verify preheat indicator on SDMO controller and test glow plugs and relay as described in glow plug fault procedures.
  • Inspect fuel quality: Drain water from fuel filters and water separators. Replace filters and refill with clean fuel.
  • Warm-up period: Allow the engine to warm up at no load for several minutes before applying load to reduce white smoke.
  • Seek engine specialist: Persistent white smoke with oil consumption may indicate internal engine wear or head gasket issues requiring professional repair.
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Repair Difficulty

Hard 4/5

Required Part

Glow Plug Set
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