Coffee Machine Medium Severity
F6 Miele Error Code

Grinder Fault

The F6 error code means the coffee grinder in your Miele coffee machine has detected a fault — it is jammed, not spinning, or drawing abnormal current.

~50%

DIY Fixable

$100-400

Typical Repair Cost

15 min – 2 hrs

Pro Repair Time

Quick Assessment

Answer to continue safely

Is it safe to keep using?

No. The machine cannot brew without a functioning grinder. You can use pre-ground coffee (if your model has a bypass chute) as a workaround.

Can I reset the code?

Yes. Yes — clean the grinder, remove any foreign objects, and reset.

When to stop immediately?

Stop if you notice: Grinder is completely jammed and will not turn, Metallic grinding noise.

Symptoms You May Notice

No grinding sound

The grinder does not activate

Harsh metallic noise

Something is jammed in the grinder

Coffee is too coarse or not ground

Grinder not processing beans properly

F6 on display

Grinder fault alert

Possible Causes

1

Foreign Object in Grinder

A stone or metal fragment from the beans is jammed in the burrs.

DIY Possible
2

Oily Bean Residue

Heavy buildup of oily residue has gummed up the burrs.

DIY Possible
3

Worn Grinder Burrs

After thousands of cycles, the burrs are worn.

Requires Professional
4

Grinder Motor Failure

The motor has burned out.

Requires Professional
5

Wiring Fault

Connection to the grinder motor is interrupted.

Requires Professional

Safe Checks You Can Do

These checks are safe for homeowners. No disassembly required. Do not remove panels or access internal components.
  1. 1

    Remove Beans and Check for Objects

    Empty the hopper. Look and feel for stones, twigs, or foreign objects.

    Stones are surprisingly common in coffee beans.

  2. 2

    Clean the Grinder

    Use Miele grinder cleaning tablets or a grinder cleaning product. Run through the grinder per instructions.

    This dissolves oily buildup on the burrs.

  3. 3

    Vacuum the Hopper and Chute

    Use a narrow vacuum nozzle to clean the bean chute and hopper.

    Compacted grounds in the chute can overload the grinder.

  4. 4

    Adjust Grind Setting

    If the grinder runs but produces coarse grinds, the setting may have shifted. Adjust to a finer setting.

    Only adjust while the grinder is running.

  5. 5

    Power Reset

    Turn off at mains for 5 minutes.

    The motor controller may need to reinitialize.

When to Call a Professional

Contact a qualified Miele technician if:

  • Grinder burrs worn out
  • Motor failed
  • Internal jam not clearable
  • Under warranty

Need Professional Help?

Find qualified Miele technicians in your area for proper diagnostics and repair.

Schedule Appointment

More Coffee Machine Error Codes

View all codes →
F99 F53 F50 F30 F11 F10 F9 F8 F5 F4 F2 F3