---
title: "Bosch dishwasher error code E18"
description: "Bosch dishwasher error code E18: water is arriving but not enough of it, or not fast enough."
url: "https://esbosch.djwp.xyz/error-codes/error-code-e18-dishwasher/"
date_modified: "2026-08-28"
Appliance type: "Dishwashers"
---


# Bosch dishwasher error code E18

### What this one means

Water is arriving but not enough of it, or not fast enough.

### 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, E3200** — 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:

- Restricted supply
- A partly blocked inlet
- A fill valve that no longer opens fully

### What to try yourself

- Check the supply valve is fully rather than partly open
- Time how long a kitchen tap takes to fill a two-liter jug — genuinely low pressure is a real possibility in older buildings

### Then what

This is the difference between no water and not enough water, and the second one usually points at pressure or a restriction rather than at a closed valve.

This code is published for dishwashers. [The full list of codes](https://esbosch.djwp.xyz/error-codes/) has the rest.

What this code means

What this one means

Water is arriving but not enough of it, or not fast enough.

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, E3200 — 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:

Restricted supply

A partly blocked inlet

A fill valve that no longer opens fully

What to try yourself

Check the supply valve is fully rather than partly open

Time how long a kitchen tap takes to fill a two-liter jug — genuinely low pressure is a real possibility in older buildings

Then what

This is the difference between no water and not enough water, and the second one usually points at pressure or a restriction rather than at a closed valve.

This code is published for dishwashers. The full list of codes has the rest.

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**[Read full article: Bosch dishwasher error code E18](https://esbosch.djwp.xyz/error-codes/error-code-e18-dishwasher/)**