---
title: "Bosch washer error code E18"
description: "Bosch error code E18: the drainage hose is blocked or kinked. What the code covers, what to check first, and what it does not tell you — on washers."
url: "https://boschmiami.support/error-codes/error-code-e18-washer/"
date_modified: "2026-08-18"
Appliance type: "Washers"
---


# Bosch washer error code E18

### What this one means

The drainage hose is blocked or kinked. It is a code the manufacturer publishes for this appliance, not one we have worked out — and it is decoded here rather than left as three characters on a display.

### The other ways your machine may say it

The same condition is published under more than one label, because it has been carried across generations of this appliance:

- **E18, F18** — the same condition, on machines of different ages

### What the code covers

A published cause names a circuit rather than a component, which is the single most useful thing to know before ordering a part. This one covers:

- The hose itself
- The siphon or spigot it connects to

### What to try yourself

- Set the program to off and unplug the machine
- Check the hose runs without kinks
- Have a bucket ready before loosening anything — the water in there is sometimes very hot

### Then what

Worth taking the scalding warning seriously on this one: a machine that stopped mid-cycle can be holding hot water, and it comes out faster than expected.

This code is published for washers. The [full list of codes](https://boschmiami.support/error-codes/) has the rest of them, searchable, including the labels older and newer machines use for the same conditions.

What this code means

What this one means

The drainage hose is blocked or kinked. It is a code the manufacturer publishes for this appliance, not one we have worked out — and it is decoded here rather than left as three characters on a display.

The other ways your machine may say it

The same condition is published under more than one label, because it has been carried across generations of this appliance:

E18, F18 — the same condition, on machines of different ages

What the code covers

A published cause names a circuit rather than a component, which is the single most useful thing to know before ordering a part. This one covers:

The hose itself

The siphon or spigot it connects to

What to try yourself

Set the program to off and unplug the machine

Check the hose runs without kinks

Have a bucket ready before loosening anything — the water in there is sometimes very hot

Then what

Worth taking the scalding warning seriously on this one: a machine that stopped mid-cycle can be holding hot water, and it comes out faster than expected.

This code is published for washers. The full list of codes has the rest of them, searchable, including the labels older and newer machines use for the same conditions.

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**[Read full article: Bosch washer error code E18](https://boschmiami.support/error-codes/error-code-e18-washer/)**