Troubleshooting Classic Grain MillUpdated a month ago

If you're experiencing issues with your NutriMill Classic Grain Mill, this guide will help you identify and resolve common problems to keep your mill running efficiently.

1. The Mill Won’t Turn On

✔ Ensure the mill is plugged in and the power source is functioning.
✔ Check if the Grain Feed Rate Knob (lower knob) is turned all the way to the left (off position). Turn it slightly to the right to allow grain flow.
✔ If the mill still does not turn on, press the Circuit Reset Button (red button on the bottom of the milling module unit) and try again.
✔ If the issue persists, contact NutriMill Support for further assistance.

2. The Mill is Running but No Grain is Milling

✔ Make sure the Grain Feed Rate Knob (lower knob) is turned far enough to the right to allow grain to flow. If it’s too far left, grain won’t enter the milling chamber.
✔ Check for clogs in the grain inlet. If necessary, turn the mill off, unplug it, and shake it gently to dislodge stuck grains.
✔ Ensure you are using dry, clean grain. Moist or oily grains can clog the system.

3. Flour is Too Coarse or Too Fine

✔ Adjust the Motor Speed Control Knob (upper knob):

• For finer flour – Turn the knob to the left (higher motor speed).
• For coarser flour – Turn the knob to the right (lower motor speed).
  ✔ Adjust the Grain Feed Rate Knob (lower knob):
• For finer flour – Set between 11:00 – 12:00.
• For bread flour – Set between 12:00 – 1:00.
• For coarser flour – Turn further to the right to allow more grain flow.
  ✔ Note that different grains produce different textures—soft grains like oats will mill finer than hard grains like wheat.

4. The Mill is Making Unusual Noises

✔ Stop the mill immediately and check for foreign objects in the grain hopper (such as small rocks or metal fragments).
✔ Make sure all parts are properly assembled, including the separator cup and flour bowl lid, to prevent vibrations.
✔ If the noise persists, try milling 3 cups of white rice on a coarse setting to clean the milling heads.

5. The Mill is Clogging or Grain is Sticking

✔ Ensure the Grain Feed Rate Knob (lower knob) is open enough to allow steady grain flow.
✔ Use dry grains—moisture or debris can cause clogs.
✔ Turn off the mill, unplug it, and gently tap or shake it to help dislodge any stuck grains.
✔ If buildup occurs, mill 3 cups of white rice on a coarse setting to help clear any residues.

6. Flour is Leaking from the Bowl or Lid

✔ Ensure the separator cup is securely attached to prevent flour leakage.
✔ Check that the air filter is in place and dry—do not mill with a wet filter.
✔ Make sure the flour bowl lid is properly sealed—if the rubber gasket is too tight, apply a small amount of flour, cornstarch, or non-stick cooking spray to lubricate it.

7. The Mill is Overheating or Shutting Off Mid-Use

✔ Reduce the grain feed rate by adjusting the Grain Feed Rate Knob slightly left to allow the motor to work more efficiently.
✔ If the motor has overheated, allow it to cool down before restarting.
✔ Make sure grains are completely dry before milling, as damp grains can cause motor strain.

Preventative Maintenance Tips

✔ Do not re-mill already milled flour—this can cause excessive strain on the motor.
✔ Regularly clean the filter and separator cup to prevent airflow blockages.
✔ Store grain in a dry place to avoid moisture-related issues.
✔ Periodically mill white rice on a coarse setting to clean the milling heads and remove residue.

If you are still experiencing issues, contact NutriMill Support for further assistance.