---
title: "Bosch error code dE"
description: "Bosch error code dE: the appliance is in showroom demonstration mode. What the code covers, what to check first, and what it does not tell you — on cooktops…"
url: "https://boschmiami.support/error-codes/error-code-de/"
date_modified: "2026-08-18"
Appliance type: "Cooktops & rangetops, Ranges"
---


# Bosch error code dE

### What this one means

The appliance is in showroom demonstration mode. 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:

- **Zones do not heat up at all** — 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:

- A display that works while nothing heats

### What to try yourself

- Cut power at the breaker for thirty seconds
- Touch any control on the appliance within the next three minutes

### Then what

It arrives with appliances bought as floor models, and it is baffling until you know: everything lights, everything responds, nothing gets hot. Not a repair and not a part.

This code is published for cooktops & rangetops and ranges. 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.

Cooktops & rangetops

What this code means

What this one means

The appliance is in showroom demonstration mode. 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:

Zones do not heat up at all — 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:

A display that works while nothing heats

What to try yourself

Cut power at the breaker for thirty seconds

Touch any control on the appliance within the next three minutes

Then what

It arrives with appliances bought as floor models, and it is baffling until you know: everything lights, everything responds, nothing gets hot. Not a repair and not a part.

This code is published for cooktops & rangetops and ranges. 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 error code dE](https://boschmiami.support/error-codes/error-code-de/)**