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Error Code

Miele Washer Code F373 Drain Filter Leak

Plain-language guidance for Miele code F373 on Washer — 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 F373
Appliance Washer
Quick answer

Miele F373: the drain filter is not tight and a leak was detected around it.

Model compatibility

Miele reuses codes across series and model years, so F373 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

Leak detected at the drain filter; the drain filter is not screwed tight.

The message

Water near the drain filter has been picked up by a Miele washer or washer-dryer, and F373 appears because that filter is loose.

At a glance

Code F373
What it means Leak detected at the drain filter; the drain filter is not screwed tight.
What you can check Switch the machine off, open the pump panel, put a tray underneath and tighten both drain filters fully. If needed, loosen them slowly to release water, rinse them, check the impellers spin freely and refit each on its own side.
When to call a technician Call a technician if F373 stays after the filters are clean and tight. Be careful of scalding water after a hot wash, and book a visit if the filter or pump area keeps leaking.

The remedy

  • Tighten the drain filters fully.

Miele’s page on a leaking front access panel names a second possible cause: a filter that was screwed in cross-threaded. It also covers a blocked filter and pump.

  • Turn the machine off and open the pump access panel, then set a tray beneath it.
  • Loosen the filters a little at a time to release water. Re-tighten to pause the flow; remove them completely only when it has stopped.
  • Rinse the filters well and make sure the impellers spin freely, taking out buttons, coins or similar items.
  • Refit each filter on its correct side, tighten both and shut the panel.

Scalding is a risk after a hot wash, and a blocked outlet can leave plenty of water in the drum. A loose filter lets water escape and cause damage. Fault still showing? Contact Miele Customer Service or book a repair online.

See also

  • F37: alignment and drain hose height.
  • F34: door lock fault.

Washer repair across our metro areas

From Miami, New York, Houston, Los Angeles and San Diego metro areas, call (844) 459-5005 for Miele washer repair. Mention F373, the model number and any steps you have taken.

Source: Miele support: Washing machine Fault F373; Miele support: Leaking access panel

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
Hours Mon–Sat: 8:00 AM – 7:00 PM
Service area Serving Miami, New York, Houston, Los Angeles and San Diego metro areas.
Response time Same-day and next-day appointments in most areas.