New Holland ENG 1824 – Engine ECU (ISM-IDI ENGINE or EDC7): Regeneration needed: Highest level - Soot Load Level is between 100% < 140%

This code indicates that the Diesel Particulate Filter (DPF) has accumulated a critically high amount of soot. The soot load has exceeded the normal threshold for passive or standard active regeneration (100%) but has not yet reached the absolute critical shutdown limit (which is >140%, triggering code 3992: Burner Shut Down Mode). Immediate intervention is required to prevent engine derate or permanent DPF damage.

• L213
• L215
• L216
• L218
• L220
• L225
• L230
• L318
• L320
• C227
• C232
• C238
• SR175
• SV185
• TR270
• B90B
• B95B
• B95C
• B100B
• B110B
• B110C
• B115B
• T4.75
• T4.105
• T5.115

1. 1

   Check for accompanying DPF sensor codes (e.g., 3171, 3838, 3839, or 3428) that could cause a false soot load reading

2. 2

   Verify the integrity of the DPF differential pressure sensor (Delta-P sensor) and its tubes. Inspect for melted, soot-clogged, or cracked tubes

3. 3

   Check the soot level status to verify if it has crossed the 140% threshold (Code 3992), which would lock out standard regeneration

1. 1

   Parked Regeneration

   Move the machine to a safe, well-ventilated area away from combustible materials, as the soot load is at the 'Highest level' (100% - 140%) and will likely not regenerate passively during operation.

2. 2

   Initiate Manual Regen

   Follow the operator's manual procedure to initiate a parked/manual regeneration via the cab switches. The engine will elevate its RPMs and inject fuel to burn off the accumulated soot.

3. 3

   Service Regeneration (If Locked Out)

   If the soot load is too high for the cab switch to work, connect the New Holland Electronic Service Tool (EST) diagnostic software to force a 'Service Regeneration'.

4. 4

   Physical Cleaning or Replacement

   If the EST tool cannot force a regeneration, or if the DPF is physically face-plugged/damaged, remove the DPF from the exhaust stream. Send it to a professional DPF cleaning facility to be baked and blown out, or replace it entirely.

5. 5

   Reset ECU

   Once the DPF is cleaned or replaced, use the EST tool to reset the DPF soot load values in the Engine ECU so the system knows a clean filter has been installed.