---
title: "Bosch error code F8"
description: "Bosch error code F8: a zone was left running without any control being touched, and the automatic time limit switched it off."
url: "https://boschmiami.support/error-codes/error-code-f8/"
date_modified: "2026-08-18"
Appliance type: "Cooktops & rangetops, Ranges"
---


# Bosch error code F8

### What this one means

A zone was left running without any control being touched, and the automatic time limit switched it off. 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:

- **F8 with H or h and the zones not heating** — 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 safety timer

### What to try yourself

- Touch any control on the surface
- Set the zone again and carry on

### Then what

A deliberate safety feature rather than a problem, and the time allowed is longer at low power than at high. It exists because a hob left on and forgotten is one of the more dangerous things in a kitchen.

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

A zone was left running without any control being touched, and the automatic time limit switched it off. 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:

F8 with H or h and the zones not heating — 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 safety timer

What to try yourself

Touch any control on the surface

Set the zone again and carry on

Then what

A deliberate safety feature rather than a problem, and the time allowed is longer at low power than at high. It exists because a hob left on and forgotten is one of the more dangerous things in a kitchen.

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.

---

**[Read full article: Bosch error code F8](https://boschmiami.support/error-codes/error-code-f8/)**