New Holland 1824 – ECM (ISM-IDI): Diesel Particulate Filter High Soot Load Red

The Diesel Particulate Filter (DPF) has accumulated a high level of soot, triggering a critical 'Red' level warning. This indicates that the DPF is heavily restricted, which can severely impact engine performance and potentially lead to engine damage if not addressed immediately.

• Workmaster 33
• Workmaster 37
• Workmaster 60
• Boomer 33
• Boomer 37
• L218
• L220

1. 1

   Check for other active fault codes using a diagnostic tool, specifically those related to sensors or the fuel system

2. 2

   Inspect DPF pressure and temperature sensors for faults that could provide incorrect data to the ECM

3. 3

   Inspect the air intake system for leaks, blockages, or a clogged air filter that could cause a rich air-fuel mixture

4. 4

   Verify the turbocharger is functioning correctly, as improper performance can affect combustion efficiency and increase soot

5. 5

   Check the fuel system for clogged fuel filters and verify the accuracy of the fuel injection timing

6. 6

   Review machine operation habits, as frequent operation at low engine speeds and for short durations can prevent passive DPF regeneration

1. 1

   Attempt a Parked (Forced) Regeneration

   Ensure the engine is at full operating temperature, parking brake engaged, PTO disengaged, and transmission in neutral. Press and hold the DPF regeneration switch. The engine speed will elevate to increase exhaust temperatures (exceeding 700°C). This process takes 15-20 minutes or longer. Allow the engine to return to normal operating temperature before shutting down.

2. 2

   Manual Cleaning or Replacement of the DPF

   If a forced regeneration fails to clear the fault or cannot be initiated, remove the DPF assembly from the machine. Send the DPF to a specialized service for professional cleaning to remove accumulated soot and ash, then reinstall.

3. 3

   Reset the Engine Control Module (ECM)

   After professional cleaning or replacement of the DPF, use an Electronic Service Tool (EST) to reset or 'flash' the ECM. This informs the control system that the DPF is clean and resets the baseline for soot load calculations.