John Deere 003720.15: DPF Ash Level Is High

The engine control unit has detected that the diesel particulate filter (DPF) ash level is high, which may affect engine performance and emissions compliance.

1. 1

   The DPF ash level as reported by the ECU

2. 2

   The DPF regeneration process and its effectiveness

3. 3

   The condition and operation of the DPF

1. 1

   Verify the DPF ash level reading

   Confirm the reading is accurate using the service manual procedures.

2. 2

   Check for DPF regeneration activity

   Ensure the DPF is undergoing proper regeneration cycles as required.

3. 3

   Inspect the DPF for damage or blockage

   Physically inspect the DPF for signs of excessive ash buildup or physical damage.