---
title: "Range hood not working"
description: "Bosch range hood not working — a fan that will not run, one stuck on a single speed, lights that have gone, or a hood that sounds healthy and moves"
url: "https://boschmiami.support/symptoms/range-hood-not-working/"
date_modified: "2026-08-18"
Appliance type: "Range hoods"
---


# Bosch range hood not working

### The fastest diagnosis is the code

There are no error codes on this equipment and none are needed. What the hood is doing — nothing, one speed, no lights, or no suction — is the whole diagnosis.

### Four problems you can tell apart yourself

- **Nothing at all:** power, or the control
- **Stuck on one speed:** the speed control
- **Runs but pulls nothing:** filters, then duct, then the outside cap
- **Lights only:** lamps or the light circuit, often separate from the fan

### The salt-air version

Near the water, the outside end of the duct ages first. A cap with a corroded damper stops opening, and the symptom is not a noise — it is a kitchen that stays smoky behind a hood that sounds completely healthy. Worth checking from outside before anyone opens the hood itself.

A grease filter that has been washed a hundred times, or a charcoal filter on a recirculating hood that nobody knew was a consumable. The most common answer to "no suction".

The duct and the outside cap

A wall or roof cap with a corroded damper that no longer opens. Near the water this is common, and the hood sounds perfectly healthy while it happens.

The speed control or switches

A hood stuck on one speed, or one that only works on high. That is the control rather than the motor.

The motor or its capacitor

A hood that hums without turning is usually the capacitor; one that is silent is usually the motor or its supply.

The connected pairing with the cooktop

If the hood used to come on by itself and stopped, that is a link between two appliances that has dropped — a setting, not a repair.

Pull the filters out and look at the light

Through them. If you cannot see light through the mesh, that is your suction gone.

Hold a tissue to the hood on full

It should hold there. If it drops immediately, nothing is being pulled and the question is filters or duct.

Look at the outside cap

From the balcony or the garden if you can reach it. A damper corroded shut is invisible from inside the kitchen.

Check the breaker for the lights

Lights and fan sometimes sit on different circuits, and a hood with one working and not the other is telling you something.

The shortest list on the site

What it usually means

Fan does not run at all

Runs but pulls almost nothing

Lights out or flickering

The fastest diagnosis is the code

There are no error codes on this equipment and none are needed. What the hood is doing — nothing, one speed, no lights, or no suction — is the whole diagnosis.

Four problems you can tell apart yourself

Nothing at all: power, or the control

Stuck on one speed: the speed control

Runs but pulls nothing: filters, then duct, then the outside cap

Lights only: lamps or the light circuit, often separate from the fan

The salt-air version

Near the water, the outside end of the duct ages first. A cap with a corroded damper stops opening, and the symptom is not a noise — it is a kitchen that stays smoky behind a hood that sounds completely healthy. Worth checking from outside before anyone opens the hood itself.

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