---
title: "Thermador oven error code E009"
description: "Thermador oven error code E009: thermador error code E009: the user interface has failed the check of its own program memory at start-up."
url: "https://thermadormiami.support/error-codes/error-code-e009-oven/"
date_modified: "2026-08-18"
Appliance type: "Wall ovens & steam ovens"
---


# Thermador oven error code E009

Error code

# Thermador oven error code E009

Thermador error code E009: the user interface has failed the check of its own program memory at start-up. What the code covers, what to check first, and what it does not tell you — on wall ovens & steam ovens.

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## Book a diagnostic visit

Your model number and a line about what it is doing is enough to get started.

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What we can confirm

## Code E009, from the manufacturer’s own documentation

A code is only meaningful together with the generation showing it — the same two digits mean different things across generations.

The code

E009

The user interface has failed the check of its own program memory at start-up

or call [(305) 846-7685](tel:+13058467685)

What it narrows down to

Panel program memory

What you are probably seeing

[Oven controls not responding](https://thermadormiami.support/symptoms/oven-control-panel-not-responding/)

Diagnostic

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What it looks like from the kitchen

## The symptom this code usually arrives with

A code names the subsystem; the symptom is what sent you to look at the display in the first place. That page says what it usually turns out to be, cheapest cause first.

- Oven controls not responding
					A touch panel that ignores you, repeats itself, or reports a key held down. On a panel above a cooktop the usual cause is condensation, and it clears when the panel dries.

														Panel unresponsive or erratic

														A code about a key being held

														Dead panel with no lights at all

								[

				What it usually means

			](https://thermadormiami.support/symptoms/oven-control-panel-not-responding/)
A touch panel that ignores you, repeats itself, or reports a key held down. On a panel above a cooktop the usual cause is condensation, and it clears when the panel dries.

- Panel unresponsive or erratic
- A code about a key being held
- Dead panel with no lights at all
In more detail

## About Thermador oven error code E009

### What this one means

The user interface has failed the check of its own program memory at start-up. 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:

- **Three LEDs on the panel blinking out the digits 0, 0 and 9** — 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 user interface board
- A software load interrupted part way through

### Worth doing before you call

- Switch the oven off at the breaker for a minute and back on

### Then what

A memory check is the board testing itself, so there is nothing behind it to clean or reseat. If it repeats, the user interface is the part.

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

This article is based on:

- Official manufacturer documentation
- Internal repair procedures
- Technician repair history
- Company quality standards

## Tell us the model number and what it is doing.

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**[Read full article: Thermador oven error code E009](https://thermadormiami.support/error-codes/error-code-e009-oven/)**