The kitchen range hood is supposed to blow air out of your kitchen and improve the air quality of your kitchen, by removing odors and eliminating smoke and grease. However, sometimes, your range hood may blow air out into the kitchen while it was supposed to be the other way around.

So, why does your range hood blow air out? Well, most of the time, it’s an installation issue or a malfunctioning range hood.

However, for more detailed reasons as to why it might be happening with your range hood, and how to fix it, read on. 

Why Your Range Hood Blows Air Out?

Before we explore the possible fixes, it’s essential to understand why your range hood might be blowing air into the kitchen. Several factors can contribute to this issue:

Ducting Configuration

The most common reason for a range hood blowing air into the kitchen is an improper ducting configuration. Range hoods are designed to capture and expel air outside through a duct. If the duct is not connected or is obstructed, the air has nowhere to go but back into your kitchen.

Recirculating Mode

Some range hoods offer a recirculating mode where they filter the air and release it back into the kitchen. If your range hood is set to this mode, it will blow filtered air into the kitchen rather than venting it outside.

Incorrect Installation

Incorrect installation can also lead to this problem. If the range hood wasn’t installed following the manufacturer’s instructions, it may not function as intended, and air might be blown back into the kitchen.

Blockage or Damage

Blockages or damage within the range hood’s ventilation system can disrupt the airflow, causing it to blow air into the kitchen. Inspect the ducting, fan, and vent cover for any obstructions or signs of damage.

Fan Speed Setting

Some range hoods come with adjustable fan speed settings. If the fan is set too low, it may not have enough power to effectively remove air from the kitchen, resulting in air being blown back in.

Control Settings

Review the control settings of your range hood to ensure it is not set to an internal recirculation mode. There may be specific settings related to ventilation that need adjustment.

How to Fix Range Hood that Blows Air Out?

Now that we’ve identified the potential causes of your range hood blowing air into the kitchen, let’s explore the steps you can take to fix the issue:

Check Ducting Configuration

Inspection: Examine the ducting to see if it’s properly connected to an exterior vent. Ensure there are no obstructions or kinks in the duct that could hinder airflow.

Reconnect or Repair: If you find that the ducting is disconnected or damaged, reconnect or repair it as needed. This may require the assistance of a professional technician.

Adjust the Ventilation Mode

Switch to External Venting: If your range hood has a recirculating mode, switch it to external venting mode. This will ensure that air is vented outside rather than being recirculated indoors.

Verify Installation

Consult the Manual: Refer to the manufacturer’s installation instructions to confirm that the range hood was installed correctly. If you suspect an installation error, consider having it reinstalled by a professional.

Inspect for Blockages or Damage

Thorough Examination: Examine the entire ventilation system, including the ducting, fan, and vent cover, for any blockages, debris, or damage.

Clean or Repair: If you find blockages, clean them out. If there is damage, repair or replace the affected components as necessary.

Adjust Fan Speed

Increase Fan Speed: If your range hood has adjustable fan speed settings, increase the fan speed to a higher setting to ensure effective ventilation.

Review Control Settings

Check Control Settings: Carefully review the control settings of your range hood, ensuring that it is not set to recirculate the air internally. Make any necessary adjustments to set it for external venting.

Relevant FAQs

Why is my range hood making noise?

Range hoods can make noise due to various reasons, including the fan motor, loose parts, or airflow turbulence. To address the issue, check for loose components, and if the noise persists, consider consulting a technician.

Can I install a range hood myself?

While some people may have the skills to install a range hood themselves, it’s recommended to have a professional technician install it, especially if it involves ductwork and electrical connections. This ensures proper installation and functionality.

Should I clean the range hood filters, and how often?

Yes, cleaning range hood filters are essential to maintain proper ventilation. The frequency of cleaning depends on your cooking habits, but as a general guideline, clean or replace filters every 3-6 months or as specified in your range hood’s manual.

Can I convert a recirculating range hood to external venting?

In some cases, it may be possible to convert a recirculating range hood to external venting by connecting it to an external duct. However, this depends on the specific model and manufacturer’s instructions. Consult your range hood’s manual or a professional technician for guidance.

To Conclude

A range hood blowing air into the kitchen can be a frustrating issue, but by understanding the possible causes and following the appropriate fixes outlined in this guide, you can ensure that your range hood operates effectively, maintaining a clean and comfortable cooking environment in your kitchen. Regular maintenance and attention to installation details are crucial to resolving this problem and enjoying the benefits of a properly functioning range hood.