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ENGINEERED IN NAIROBI, KENYA
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  3. Fault Codes
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  5. PERKINS-2387
Perkins

PERKINS-2387

Water in Fuel Detected

⚠️WARNING

The fuel/water separator sensor has detected excessive water contamination in the fuel supply. Water in diesel fuel causes injector damage, poor combustion, and corrosion of fuel system components.

🔍 Possible Causes

  • •Condensation in fuel tank
  • •Contaminated fuel delivery
  • •Failed fuel cap allowing rain entry
  • •Fuel/water separator full
  • •Fuel storage tank contaminated
  • •Sensor failure (false alarm)

🔧 Troubleshooting Steps

  1. 1Drain water from fuel/water separator
  2. 2Check separator bowl for water volume
  3. 3Inspect fuel tank for water layer
  4. 4Check fuel cap seal condition
  5. 5Test sensor operation if water not found
  6. 6Consider fuel tank cleaning if chronic

🛠️ Parts You May Need

Fuel/Water SeparatorWater SensorFuel TankFuel CapSeparator ElementDrain Valve

Need parts? We stock genuine Perkins parts with next-day delivery in Nairobi.Call +254 768 860 665

❓ Frequently Asked Questions

How often should I drain the fuel water separator?

Drain the water separator at each daily inspection or at least weekly. In humid climates or with questionable fuel quality, daily checks are recommended.

Can water damage diesel injectors?

Yes, water causes injector corrosion, reduces lubrication causing wear, and can cause catastrophic injector tip failure from steam expansion. Always maintain water-free fuel.

Need Expert Help?

Our engineers have fixed 1,000+ Perkins generators. Get professional diagnosis now.

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Related Fault Codes

SPN-94Fuel Pressure LowSPN-157Fuel Injector Rail Pressure LowDSE-E090Low Fuel Level WarningPERKINS-111ECM Internal Failure

Full diagnostic guide

PERKINS-2387 tells you where to start. These tell you what to do next.

A fault code names a symptom, not a cause. Our engineers have written the diagnostic sequence they use on site for this class of fault — ranked causes, ordered steps with the reading expected at each one, and the point at which to stop and call someone.

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All diagnostic guides in the Repair Centre