---
title: "Bosch dishwasher error code E02"
description: "Bosch error code E02: a relay on the main control board is not switching as it should."
url: "https://boschmiami.support/error-codes/error-code-e02-dishwasher/"
date_modified: "2026-08-18"
Appliance type: "Dishwashers"
---


# Bosch dishwasher error code E02

### What this one means

A relay on the main control board is not switching as it should. 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:

- **E02, E03, E0103, E0107** — the same condition, on machines of different ages
- **Sanitized light flashing** — how a model with no digital display says it. On that machine, the lights are the code

### 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 relay itself
- Whatever it was trying to switch
- The board's own supply

### Worth doing before you call

- Cut power at the breaker for thirty seconds
- Note whether the machine gets further into the cycle on the second attempt

### Then what

A relay code that clears once and returns a week later is a board on its way out, and it is worth diagnosing before it strands a full load.

This code is published for dishwashers. 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

A relay on the main control board is not switching as it should. 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:

E02, E03, E0103, E0107 — the same condition, on machines of different ages

Sanitized light flashing — how a model with no digital display says it. On that machine, the lights are the code

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 relay itself

Whatever it was trying to switch

The board's own supply

Worth doing before you call

Cut power at the breaker for thirty seconds

Note whether the machine gets further into the cycle on the second attempt

Then what

A relay code that clears once and returns a week later is a board on its way out, and it is worth diagnosing before it strands a full load.

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

---

**[Read full article: Bosch dishwasher error code E02](https://boschmiami.support/error-codes/error-code-e02-dishwasher/)**