---
title: "Hood blower and capacitor repair"
description: "La Cornue hood blower and capacitor repair: one 600 CFM blower on a four-speed variable motor, and on the larger motorized hoods two of them."
url: "https://la-cornuemiami.support/services/hood-blower-and-capacitor-repair/"
date_modified: "2026-09-03"
Appliance type: "Range hoods"
---


# La Cornue hood blower and capacitor repair

### About the blower in a Château hood

One 600 CFM blower on a four-speed variable motor, and two of them on some of the larger motorized canopies — where one can fail silently while the other carries the room, the only symptom being a kitchen that clears slowly. The capacitor is tested before the motor is condemned, because it fails far more often, costs a fraction and looks identical from the kitchen. And the canopy is supported and covered throughout: it is enamelled and trimmed to match the range, and it cannot be touched up on site.

What this involves

Rumble and vibration treated as a failing bearing, not a quirk

Capacitor tested before the motor is condemned

On a two-motor hood, both are tested — one can fail unnoticed

Listen and measure

Current draw and speed against specification. A motor pulling hard at low speed is a bearing or a capacitor.

Test the capacitor

Cheap, common and frequently the whole problem. It is checked before a motor is condemned.

Measure the motor at each speed

A four-speed variable motor that only performs at one speed may be the control rather than the motor.

On a two-motor hood, test both

One blower can fail silently while the other carries the room. The only symptom is a kitchen that clears slowly.

Verify airflow, then protect the enamel

The canopy is finished to match the range. It is supported and covered before anything is undone.

### It ran for a second, stopped, and now does nothing.

That sequence points at thermal protection rather than a dead component: a blower dragging in grease or running a failing bearing draws too much current, heats, trips, and refuses to restart until it cools. The real problem is mechanical, and running it until it stops permanently is the expensive way to find out.

### Only the top speed works.

That is the speed control rather than the motor almost every time, and it is a different part. Worth fixing: the low speeds are what a hood is meant to run at while something simmers, and a hood nobody switches on because it is deafening is not protecting the kitchen.

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