Miele Refrigerator Error 01-F-21

⚡ Quick Answer: The Miele Refrigerator error code 01-F-21 indicates an issue with the ice production system, often due to obstruction or malfunction in the ice maker.... ✅ DIY Fixable

What Does Error 01-F-21 Mean?

The Miele Refrigerator error code 01-F-21 indicates an issue with the ice production system, often due to obstruction or malfunction in the ice maker. Symptoms may include the error code displayed during ice production, ice not forming properly, or ice not dropping into the compartment. If you hear unusual humming sounds and notice a warm interior, these could be additional signs of a compressor failure.

Common Symptoms:

  • Error code 01-F-21 displayed during ice production
  • Ice production obstructed or ice not dropping into compartment
  • Ice maker error on display

Possible Causes

  • Ice production obstruction or malfunction in ice maker (medium)
  • Ice maker sensor or wiring fault (low)

How to Fix Error 01-F-21

DIY Fix Basic Ice Maker System Reset & Inspection

  1. Turn off the ice maker (use the toggle switch under the control panel if present) and then turn it back on to reset the system.
  2. Visually inspect the ice maker area for ice buildup or physical obstructions and remove any debris.
  3. Ensure the freezer temperature is set to appropriate levels for ice production.

Technician Only Ice Maker Component & Sensor Diagnostic

  1. Disconnect power to the refrigerator before beginning service.
  2. Inspect ice maker internal components, temperature sensors, and wiring harnesses for damage, loose connections, or faults.
  3. Test sensors and control signals with proper diagnostic tools and compare to manufacturer specifications.
  4. Replace any confirmed faulty components (sensors, ice maker assembly parts, or connectors).

Parts needed: Ice maker assembly components, Temperature/ice maker sensors, Wiring harness/connectors

🛑 When to Call a Pro:
  • If basic reset and inspection do not clear the error or ice production does not resume normally
  • If any wiring or electronic components appear damaged or unclear how to test safely

Next step

Choose the next step for 01-F-21

Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.

Check during diagnosis

Most relevant component to inspect

Ice Maker Assembly

Automatically freezes and dispenses ice cubes inside the freezer compartment.

Typical part-only price
$75 - $160
DIY difficulty
Medium
Estimated time
20-30 mins
Where can I find the model number?

Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.

Find a part that fits my model

Verify the complete model and part number on the retailer's compatibility page before ordering.

Other parts options

Check related components first; use model search as a fallback.

Possible related component

Wiring Harness

Connects controls, sensors, motors, and other electrical components inside the appliance.

$20 - $120 · Medium · 30-90 mins

Check fit & price
Model number required

Model-compatible Refrigerator parts

Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.

Find a part that fits my model

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Optional routine care

Maintenance supplies

These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.

Maintenance supply

Refrigerator Condenser Coil Brush

For routine cleaning of accessible condenser areas where the manufacturer permits it. It does not repair a sealed-system or compressor fault.

View maintenance supply
Maintenance supply

Model-Compatible Refrigerator Water Filter

A routine replacement item on models with a water filter. Match the complete appliance model and existing filter number before ordering.

Compatibility check required: use the complete appliance model and compare the existing filter, bag, or specification before ordering.

Find one that fits my model

Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.

Technical Specifications

note The previous model-independent part specification was removed. Verify the full model number and diagnosis in the manufacturer's official parts catalog before ordering.
part_number None

Common Questions

What does 01-F-21 error mean on Miele Refrigerator?

Error 01-F-21 indicates a malfunction in the ice maker, causing issues with ice production.

Can I fix Miele Refrigerator 01-F-21 error myself?

Yes, you can attempt a basic ice maker reset and inspect for obstructions.

How much does it cost to fix 01-F-21 error?

Repair costs vary widely based on parts replaced, typically ranging from moderate to higher costs.

When should I call a technician for 01-F-21?

Call a technician if the reset doesn't work or if you find damaged wiring or components.

Data last verified: 2026-07-31

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