Description

Original drain hose for Miele washing machine Miele 11820221

The drain hose 11820221 leads the washing water from the machine to the drain opening, preventing leaks and drainage problems. The part is suitable for a wide range of older Miele washing machines from the W1, W2, W3 and W5 series, and is a genuine OEM part with an exact fit.

A puddle of water under the washing machine is often the first sign of a worn drain hose. Before ordering, safety first! To ensure a successful repair and maintain the longevity of the appliance, it is imperative to use only original parts. Now click on the “Check Model Compatibility” button at the top of the page and our system will immediately confirm that the part is suitable for you.

Why is the Miele washing machine leaking from underneath?

In most cases, the leak originates from a drain hose that has hardened or cracked over time. A loose connection at the point of attachment to the hose or pump can also cause a leak. Such a fault requires a visual inspection of the hose along its entire length, from the machine to the drain opening.

An original drain hose is designed precisely for the diameter and length of your appliance model. A non-original hose may be too short, wide or brittle, causing a new leak in a short time.

Where to find the model number: On Miele front-loading washing machines, the model sticker (E-Nr) is located on the inside of the door. Check it before ordering to ensure an exact match.

Looking for SKU 10356170?

The device manufacturer replaced the old part number 10356170 with the latest part number 11820221. This is an original and completely identical part, simply with an updated catalog number.

You can find all original Miele spare parts in our variety of categories.

Original vs. Unapproved Replacement – ​​What's the Difference?

📋 Technical specifications

✅ Compatible models

The part is suitable for the following models (check for exact match with the E-Nr on the sticker). Not suitable for the current generation W1 (new Miele machine models from 2013 onwards):

Old W1 series (before current generation): W140-W198, W1113-W1994 W2 series: W200-W2261 W3 series: W3xxx (such as W3725) W5 series: W500-W5999

There are dozens of other verified models in these series. To be sure, compare your E-Nr number against the list via the “Check Model Compatibility” button at the top of the page.

🔧 How do you replace the drain hose in a Miele washing machine?

The replacement itself is mechanically simple – loosening a clip or screw connection – but a loose connection can cause flooding during the first wash cycle. This is not just a cosmetic problem, but a real risk of water damage to the home.

⚠️ Turn off the water tap and turn off the electricity before moving the machine and starting work.

1. Pull the machine out gently and reach the back.
2. Loosen the old hose from the connection point to the machine and pump.
3. Connect the new hose in the same direction, making sure the bend is pointing downwards.
4. Tighten both connections securely. – A clip or screw-in nut, with no room for slack.
5. Turn on the water and run a short cycle, And follow the machine as it goes. To detect any drips.

⚠️ If after checking you are not sure that the connection is completely tight – do not leave the machine running unattended. Prefer to have a specialist install? Our service team is available to coordinate a professional installation.

💡 Tip from the experts

💡 Expert tip: Daniel, our service specialist, recommends checking the pump filter every time you replace a drain hose. From our technicians' experience, in about 30% of cases there is also dirt stuck in the filter that causes the leak to return after a few weeks, even with a new hose.

❓ Frequently Asked Questions

Why is my Miele washing machine leaking from the back?

In most cases, the cause is a worn drain hose or a loose connection at the anchor point. Check the hose along its entire length, and if it appears to be hardening, cracked, or wet – it is recommended to replace it with an original hose to prevent flooding.

What is the connection between error F138 and the drain pipe?

Error F138 on Miele machines indicates water has accumulated in the bottom tray of the machine. The most common cause is a leak from the drain hose or drain pump, so checking the hose is a recommended first step.

Can I replace the drain pipe myself?

Yes, but be careful – a loose connection can cause flooding , not just a minor malfunction. Unplug the machine from the power and water, pull it forward slightly, and loosen the connections at the ends of the hose. After replacing, run a short cycle and monitor the machine for drips before leaving it running unattended.

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