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Error Code

Miele Refrigeration Code F120 Mains Voltage Too Low

Plain-language guidance for Miele code F120 on Refrigerator — symptoms, safe checks, and when to call a technician.

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At a glance

Overview

Miele Repair Editorial Team Written by Miele Repair Editorial Team Editorial Team Published October 20, 2026 Updated October 28, 2026
Error code F120
Appliance Refrigerator
Quick answer

Miele refrigeration appliances show F120 when mains voltage is low or fluctuating.

Model compatibility

Miele reuses codes across series and model years, so F120 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.

Plain language

What this code means

Mains voltage occasionally too low or fluctuating significantly.

What the display is saying

F120 comes with the note that the mains voltage is too low. Miele explains that it is occasionally low or swings significantly.

At a glance

Code F120
What it means Mains voltage occasionally too low or fluctuating significantly.
What you can check Have a qualified electrician check the mains voltage, since it is occasionally too low or swings significantly. Do not adjust the refrigerator for this.
When to call a technician If the electrician finds the supply is fine and F120 still shows, book a service visit. Pass on the electrician's findings and your model number.

Recommended step

  1. Have a qualified electrician check the mains voltage.

Compare

  • F121: the ice cube maker code that can also relate to voltage.
  • F114: freezer section evaporator sensor.

Refrigerator repair for the metro areas we serve

Serving Miami, New York, Houston, Los Angeles and San Diego. Phone (844) 459-5005, or visit refrigerator repair, and tell us the electrician’s findings and your model number.

Source: Miele support: Refrigeration Fault F120

Caution

Safety warning

Important safety warning

Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.

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(844) 459-5005
Phone (844) 459-5005
Email info@mieleservicecenter.support
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