Why Dyson Hair Dryer Stopped Working And Red Lights Flashing? Troubleshooting Guide

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Dyson’s line of hair dryers doesn’t just look sleek, but they’re also incredibly straightforward to use. Still, it can be pretty alarming if the device stops midway while flashing multiple red lights. If that’s happening to you, we’ll help you out.

Your Dyson hair dryer stopped working while flashing red lights because it was overheating. The device will quickly overheat when airflow is restricted due to a dirty filter. So, clean the air filter and give the unit plenty of time to cool down.

This guide will help you understand why that problem happens and what you can do to fix it. On top of that, you’ll also learn what it means when the hair dryer’s other lights (the white ones) flash.

Why Has My Dyson Hair Dryer Stopped Working?

Your Dyson hair dryer has stopped working because it sensed itself overheating. 

When the device senses itself reaching dangerously high temperatures, it will deliberately shut itself off and stop working as a protective measure. That’s done to ensure that the Dyson hair dryer doesn’t injure you or damage itself with that excessive heat.

You’ll know that overheating is why your Dyson hair dryer stopped working because the three red lights only flash together when the device generates too much heat.

Here are the steps you can take to minimize your hair dryer’s downtime and get it working normally again:

Read: How To Reset Dyson Vacuum?

Step 1: Complete Cool Down

First and foremost, you must disconnect your Dyson hair dryer and give it ample time to cool down. To prevent injury, you should not hold or touch the hair dryer during this cooldown period.

Remember: the device stopped working and began flashing red lights because it was overheating. So, place it somewhere safe for at least 30-60 minutes until it cools down to safer temperatures.

Disconnect the hair dryer from its power source to ensure no one accidentally turns it on during the cooldown period.

Read: 5 Reasons Why Dyson’s Vacuum Suction Motor Is Not Working

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Step 2: Remove And Clean Filter Cage 

Once you’re confident that your Dyson hair dryer has cooled down thoroughly, you can begin the next step of cleaning its filter cage.

One reason the hair dryer overheated was because of restricted airflow. That happens when the filter is clogged. The hair dryer can’t keep itself within safe operating temperatures without adequate airflow.

Firstly, take out the removable filter cage. Then, use a brush to remove loose dirt or debris stuck in the filter cage.

Secondly, take the filter cage and soak it in water with a bit of dishwashing liquid for at least 30 Minutes. Soaking it this way will thoroughly clean the filter cage and restore smooth airflow when you use it later.

When you’re done, you must let the filter cage air dry completely. That process can take several hours, but it’s vital. Any moisture left will block air from flowing into your Dyson hair dryer.

Read: 4 Reasons Why Dyson Vacuum Smells Bad

Step 3: Clean Filter Mesh

While the filter cage is drying, you can clean the filter mesh on the Dyson hair dryer. That’s the mesh located directly under where the filter cage goes.

You only need the round filter cleaning brush that came with the hair dryer to do that. Wrap the brush around the filter mesh and clean away any dust clogging it up.

Step 4: Reassemble And Test

The best way to know if Steps 1-3 were successful is to reassemble and test the device.

So, once all parts are cleaned, you can reassemble the hair dryer and test it. Then, reattach the filter cage and any other attachments you usually use.

Then, test your Dyson hair dryer to ensure it can function correctly.

Read: Dyson Vacuum Has No Power

Connect with an Appliance Repair Tech

Click here to use the chatbox to speak with one of our technicians.
No in-home service calls. No appointments.

What Do The Red Lights Mean On A Dyson Supersonic Hair Dryer?

Earlier, you read that the three flashing red lights on your Dyson Supersonic hair dryer mean the device is overheating. However, that’s not the only thing the red lights represent.

Each red light represents the temperature setting you’re using on the hair dryer. So, here’s what it means when those lights are on:

  • No red lights are on: The heat setting is off and only blowing cool air.
  • 1 red light is on: The heat setting is on low.
  • 2 red lights are on: The heat setting is on medium.
  • 3 red lights are on but not flashing: The heat setting is on high.

What Do The White Lights Mean On A Dyson Supersonic Hair Dryer?

Your Dyson Supersonic hair dryer has three white lights on the other side. These lights represent the current airflow setting on your device by indicating:

  • 1 white light is on: The airflow setting is on Gentle.
  • 2 white lights are on: The airflow setting is on Medium.
  • 3 white lights are on but not flashing: The airflow setting is on Fast.

Why Are The Dyson Hair Dryer Lights Flashing?

The white and red lights on a Dyson hair dryer will flash if the device tries to communicate something to you.

Here’s what those 3 flashing lights mean based on their color:

  • 3 flashing white lights: When 3 white lights flash together, the hair dryer is informing you to clean the air filter. That’s likely because the filter has trapped a lot of dust and dirt and is now restricting airflow into the hair dryer.
  • 3 flashing red lights: When 3 red lights flash together on your hair dryer, that means it’s overheating. The device produces too much heat and doesn’t have enough smooth airflow to keep it at safe operating temperatures.

These lights will stop flashing once you’ve taken the necessary steps to resolve the problem.

However, if they still flash after you’ve done everything possible, you’ll have to contact Dyson directly for further support.

Flashing lights that won’t turn off no matter what you do are indicators of a much deeper problem inside the Dyson hair dryer that you can’t fix yourself. So instead, a qualified technician will have to troubleshoot the problem and fix it for you.

Read: Dyson V10 Not Working After Cleaning The Filter

Frequently Asked Questions (FAQs)

Here are a few more questions and answers to help you with your Dyson hair dryer:

Can You Use Your Dyson Hair Dryer Without Its Filter Cage?

No, you cannot use your Dyson hair dryer without its filter cage. The filter cage is its first line of defense against dust, preventing larger pieces of dust from entering and overwhelming the mesh filter. Using it without the filter cage will overwhelm the device with dust and lead to overheating quickly.

How Do I Clean The Filter On My Dyson Hair Dryer?

You can clean the filter on your hair dryer by brushing away any loose dirt using the round brush. The filter cage is removable, so you can soak it in water for 30 minutes for a more thorough cleaning.

How Often Should You Clean Dyson Hair Dryer Filter?

You should clean the filter on your Dyson hair dryer once a week with regular usage. However, you’ll want to clean it more often if you use your hair dryer more frequently or if the air quality in your home is terrible.

Why Is My Dyson Hair Dryer Cutting Out?

Your Dyson hair dryer is getting cut out because of a lack of airflow. Clogged filters prevent air from flowing through the hair dryer, causing multiple problems. The motor will become overloaded and overheat, causing it to cut out.

Can A Dyson Hair Dryer Be Repaired?

Yes, a Dyson hair dryer can be repaired, and it should be done by a qualified repair technician. Unfortunately, many of the internal spare parts are not readily sold to the public, and performing those replacements and other repairs can be too challenging for most people.

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