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Error Code

Miele Coffee Machine F307 Code Clogged Milk Valve

Plain-language guidance for Miele code F307 on Coffee Machine — 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 F307
Appliance Coffee Machine
Quick answer

F307 is a clogged milk valve on a Miele coffee machine. Cleaning the valve parts and reseating the holder is the remedy.

Model compatibility

Miele reuses codes across series and model years, so F307 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

F307 is a clogged milk valve.

A clogged milk valve is behind F307 on a Miele coffee machine. Work through the parts in the order Miele gives.

At a glance

Code F307
What it means F307 is a clogged milk valve.
What you can check Take apart the milk system step by step, hand-wash the valve cover, rinse the hoses and wash the valve parts in the dishwasher. Refit the holder until it audibly locks.
When to call a technician A technician should step in if F307 still shows after the milk valve has been cleaned and the holder locked in place.
  • Open the door, lift out the left bean container and the maintenance container, and take off the stainless steel cover of the central spout.
  • Swing the milk valve cover out on its pin at the top right. Hand-wash that cover only.
  • Free the milk pipework at the central spout dispensing unit and at the valve holder, and remove the connecting pipework.
  • Separate the angular moulded hose from the round hose and rinse both under running water, leaving the connecting pieces on the hoses.
  • Squeeze the side latches and pull the holder forwards, separate it from the silicone seal, and draw the stainless steel bolt upwards.
  • Wash the valve components in the dishwasher.

Holder not locked in

Take out the holder with its silicone insert and fit it again until it audibly locks.

Related

For heating, see F3. For a valve initialisation error, see F352.

Coffee machine repair in the Miami, New York, Houston, Los Angeles and San Diego areas

When the milk valve still shows F307 after cleaning, call (844) 459-5005 to arrange coffee machine service in the Miami, New York, Houston, Los Angeles and San Diego metro areas. Have the model number ready.

Source: Miele support: Coffee Fault F307

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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