Miele Refrigerator Error F121

⚡ Quick Answer: The Miele refrigerator error F121 indicates a malfunctioning ice maker, often due to a defective unit or insufficient water supply. This can lead to h... ✅ DIY Fixable

What Does Error F121 Mean?

The Miele refrigerator error F121 indicates a malfunctioning ice maker, often due to a defective unit or insufficient water supply. This can lead to halted ice production and may cause ice or water buildup around the ice maker. Users may notice the F121 code on the display, signaling the need for troubleshooting to restore normal function.

Common Symptoms:

  • F121 appears on display
  • Ice production stops or ice maker does not function
  • Possible ice or water buildup around ice maker

Possible Causes

  • Defective ice maker unit (mechanical or electrical fault) (high)
  • Insufficient or no water supply to ice maker (high)
  • Voltage fluctuations causing system interruption (medium)

How to Fix Error F121

DIY Fix Basic checks and reset

  1. Ensure water supply to the refrigerator is turned on and water line is connected properly.
  2. Check that water pressure meets manufacturer’s recommended level (consult manual).
  3. Power off the refrigerator for several minutes and then power back on to reset the system.

Technician Only Inspect and service ice maker and water system

  1. Shut off water supply to the refrigerator.
  2. Remove and inspect ice maker assembly for signs of mechanical blockage or damage.
  3. Check water inlet valves for leaks or improper operation.
  4. Test electrical components of the ice maker for faults and verify control signals.
  5. Replace defective ice maker unit or water inlet valve as needed.

Parts needed: Ice maker assembly, Water inlet valve, Associated electrical connectors

🛑 When to Call a Pro:
  • If the ice maker continues to fail after basic troubleshooting and reset
  • If water leaks are observed at the valves or inside the refrigerator
  • If voltage issues persist despite proper supply

Technical Specifications

wattage N/A
component Temperature Sensor
resistance 5-10 kOhms at room temperature
part_number Miele 10410610
voltage_rating 120V AC

Common Questions

What does F121 error mean on Miele refrigerator?

F121 indicates a malfunctioning ice maker, often due to defects or water supply issues.

Can I fix Miele refrigerator F121 error myself?

Yes, check the water supply, ensure it's connected properly, and reset the refrigerator.

How much does it cost to fix F121 error?

Estimated repair costs range from $150 to $400+, depending on parts and labor.

When should I call a technician for F121?

Call if the ice maker fails after troubleshooting, if leaks are present, or if voltage issues persist.

Sources & References

Data last verified: 2026-02-11

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