Echo

SCR FAULT CODES

UnclassifiedFuel

What This Code Means

Fuel filter contamination; Injector tip wear; Carbon buildup; DEF quality degradation; DEF contamination; SCR fault codes

Possible Causes

  • •Portable job site fueling
  • •Operating in dusty environments
  • •Extended low-load operation
  • •Degraded DEF
  • •Contaminated DEF
  • •Dusty environments
  • •DEF quality degradation
  • •DEF contamination

Suggested Actions

  1. 1Change fuel filter at 250 hours or sooner
  2. 2Run engine at 50%+ load for extended periods to prevent carbon buildup
  3. 3Use fresh DEF
  4. 4Check DEF tank annually
  5. 5Run equipment at 50%+ load for extended periods
  6. 6Run engine at 50%+ load for extended periods
  7. 7Check tank annually

Related Echo Fault Codes

OVER CRANKSPILL CONTAINMENTSPILL CONTAINMENT (CHECKING)OVER SPEEDSPILL CONTAINMENT (OVERFLOW)OVER CRANK INDICATORWATER TEMPOIL PRESSBATTERYAIR FILTER
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