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Error code · Built-In Coffee System

JennAir Coffee System Message “GROUND TOO FINE ADJUST MILL”: Coarser Grind Needed

On JennAir RISE and NOIR built-in coffee systems such as the JJB6424, GROUND TOO FINE ADJUST MILL means the ground coffee is too fine, so the coffee runs off too slowly. Check that the tank is…

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Code
GROUND TOO FINE ADJUST MILL
Appliance
Built-In Coffee System
Brand
JennAir
Warranty
30-day workmanship

What GROUND TOO FINE ADJUST MILL means

On JennAir RISE and NOIR built-in coffee systems such as the JJB6424, GROUND TOO FINE ADJUST MILL means the ground coffee is too fine, so the coffee runs off too slowly. Check that the tank is seated. Turn the grinding adjustment knob one click toward number 7 while the grinder is running. Press OK on the alarm several times to reset. The message clears once the grind is coarser.

Common causes of GROUND TOO FINE ADJUST MILL

  • The grind is too fine, so coffee flows too slowly
  • The water tank is not seated in position
  • The mill setting has not been changed
✓ One safe check you can try

1. Check that the water tank is seated fully. 2. While the grinder is running, turn the grinding adjustment knob one click clockwise toward number 7. 3. Press OK on the alarm several times to reset or restart the coffee maker. 4. Brew again. 5. If the alarm stays, call us.

! Why to stop there
  • It is a grinder setting, so a visit is not needed.
  • Moving the knob more than one click at a time or with the grinder off can harm the mill.
  • A persistent alarm needs a technician to check the unit.
Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.
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Other Built-In Coffee System codes

INSERT MILK CONTAINER!JennAir Coffee System Message "INSERT MILK CONTAINER!": Milk Container Missing SELF DIAGNOSISJennAir Coffee System Message "SELF DIAGNOSIS": Automatic Startup Test INSERT GROUNDS CONTAINERJennAir Coffee System Message "INSERT GROUNDS CONTAINER": Container Not Replaced ADD GROUND COFFEEJennAir Coffee System Message "ADD GROUND COFFEE": Funnel Is Empty CLOSE DOOR!JennAir Coffee System Message "CLOSE DOOR!": Service Door Is Open DESCALE!JennAir Coffee System Message "DESCALE!": Time to Remove Scale EMPTY GROUNDS CONTAINERJennAir Coffee System Message "EMPTY GROUNDS CONTAINER": Full of Used Grounds FILL BEANS CONTAINER!JennAir Coffee System Message "FILL BEANS CONTAINER!": Beans Ran Out
GROUND TOO FINE ADJUST MILLGROUND TOO FINE ADJUST MILL questions
Which way do I turn the knob?

One click toward number 7, rotating clockwise while the grinder is running. Do not move it more than one click at a time. Small steps work best.

Why does the grind matter?

Too fine a grind makes coffee run off too slowly, which triggers this message. A coarser setting lets the water flow through at the right speed.

How do I reset the alarm?

Click OK in response to the alarm several times to reset or restart the coffee maker. Then brew again and check the flow. Tell us if it keeps returning.

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Still unsure about GROUND TOO FINE ADJUST MILL?

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