Dyson Hair Dryer Repair: How to Fix Lights On, No Heat Issue

Dyson hair dryers are renowned in the beauty world, but like all gadgets, they can face issues.

If you've observed your dryer losing heat or turning off abruptly, pinpointing the cause is key.

Hair dryer placed on the table

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In this guide, we'll tackle common problems with your Dyson hair dryer and provide straightforward solutions.

We'll also touch on signs of a deteriorating dryer and when it might be time for a repair. Let's get your Dyson back to its optimal performance!

Wrong Heat Setting

If your Dyson hair dryer is turning on but not heating up, it could be due to the wrong heat setting. This common issue can be easily fixed with a few simple steps.

How to Fix

Make sure that you have selected the correct heat setting. The Dyson hair dryer has three heat settings: low, medium, and high.

Adjust by pressing the button with a red dot: one light indicates low, two for medium, and three for high heat.

If you have selected the correct heat setting and your Dyson hair dryer is still not heating up, try turning it off and unplugging it for a few minutes.

Doing so will allow your dryer to cool down and reset itself. Once you have plugged it back in, try turning it on again and selecting the correct heat setting.

Restricted Airflow

A lack of proper airflow is a frequent issue that compromises the efficiency of your Dyson hair dryer, especially its heating capability.

The airflow hindrance is often attributed to blockages in the air filter due to accumulated dirt or dust.

Brand new Dyson Hair Dryer

When the airflow is blocked, the dryer cannot draw in enough air to function efficiently, leading to suboptimal heating or even causing the device to shut down.

How to Fix

Check the removable filter cag located on the handle. If it is clogged with dirt or debris, the hair dryer will not be able to function correctly.

To clean the filter, remove the cage and use a brush to remove any loose dirt or debris.

For a comprehensive cleaning, detach the filter cage and submerge it in water for about 30 minutes.

After thoroughly drying it, reattach the cage and test the hair dryer to confirm improved airflow.

Heating Element

The heating element is responsible for heating the dryer's air, and if it is not functioning correctly, you will only get cold air.

How to Fix

Check if the heating element is broken. You can do this by using a multimeter to test the continuity of the heating element.

If the heating element is not continuous, it means that it is broken and needs to be replaced. 

If you are not comfortable with doing the repair yourself, you can take your Dyson hair dryer to an authorized repair center.

Malfunctioning Microprocessor

The microprocessor is responsible for regulating the temperature of the dryer to prevent extreme heat damage to your hair.

If it is not functioning properly, it may not be able to regulate the temperature, resulting in no heat being produced.

How to Fix

A bad microprocessor is not repairable. For your hair dryer to function correctly, a replacement is essential.

It's advisable to send your device to Dyson or a certified technician for the necessary repairs.

Faulty Thermal Fuse

The thermal fuse is a safety device that prevents the hair dryer from overheating and causing a fire.

When the temperature inside the hair dryer becomes too high, the thermal fuse will cut off the power to the heating element.

If the thermal fuse is tripped or becomes faulty, it can stop the appliance from functioning altogether.

How to Fix

Unlike some components, a thermal fuse cannot be reset. Once it's blown, it needs to be replaced.

Ensure you obtain the correct replacement part, ideally from a certified Dyson dealer or technician.

Defective Power Outlet

Dyson hair dryers can sometimes face power consumption issues.

These issues might manifest as the dryer drawing more power than expected or showing inconsistent performance.

Such irregularities could be due to internal electrical complications or the device's prolonged use at high settings.

How to Fix

Begin by checking the outlet. Plug in a different device to determine if the outlet is functional.

If the issue persists, examine the hair dryer's cord for signs of damage or fraying.

If there's visible damage, it's crucial to refrain from using the dryer and contact Dyson for a replacement cord immediately.

Also read: Does Dry Shampoo Fix Greasy Hair?

Why Does My Dyson Hair Dryer Keep Shutting Off?

One possible reason why your Dyson hair dryer keeps shutting off is that the internal temperature is getting too high.

It can happen if the airflow is obstructed or the filter is clogged with dust and debris. To fix this, try cleaning the filter and ensuring the airflow is not obstructed.

Another reason is that there's a problem with the power supply.

If the cord or outlet is damaged, the hair dryer may shut off as a safety measure. Try plugging the hair dryer into a different outlet to see if that solves the problem.

How Do I Reset My Dyson Hair Dryer When Overheating?

Overheating is a safety concern with any electrical appliance, and Dyson hair dryers are designed with features to prevent damage under such conditions.

If your Dyson hair dryer overheats, it may automatically shut off to protect its internal components. To reset your Dyson hair dryer after it has overheated:

  1. Firstly, unplug the hair dryer from the power source and allow it to cool down for several minutes. This ensures that any excessive heat is dissipated.
  2. Once cooled, inspect the air intake and filter for blockages. Clean any obstructed parts to prevent overheating.
  3. After ensuring the device is clean and cool, plug the hair dryer back into the power source.
  4. Turn on the dryer at a low setting to test its functionality. If it operates without shutting off, you can gradually increase to your desired heat setting.

You might also like: Does Hair Mousse Dry Out Hair?

How Do I Know if My Dyson Hair Dryer is Dying?

Signs that your Dyson hair dryer may be nearing the end of its lifespan include inconsistent heat output, frequent overheating, and unusual noises.

You may also notice reduced airflow or even electrical hiccups like power fluctuations.

If these issues persist despite regular maintenance, your hair dryer may need professional repair or replacement.

Can My Dyson Hair Dryer Still Be Repaired?

Yes. Before you decide to replace your hair dryer, consider taking it to a Dyson Service Center for a repair.

Also, check if your hair dryer is still under warranty. If so, the repair may be covered.

If your warranty has expired, you can still bring your hair dryer to a Dyson Service Center for repair.

The repair cost will depend on the extent of the damage, but it may be more cost-effective than purchasing a new hair dryer.

Be sure to check out: Does Hairspray Dry Out Your Hair Or Otherwise Damage It?

Final Thoughts

Like any electrical appliance, Dyson hair dryers can face issues over time.

Regular maintenance not only enhances performance but also extends the lifespan of the appliance.

As users, understanding the intricacies of the dryer and being aware of common issues can save both time and money in the long run.

It's also essential to remember that while some troubleshooting can be managed at home, some technical issues warrant expert attention.

Dyson's customer service or trusted technicians should be consulted for complex issues to ensure the device's safety and functionality.

We'd love to hear your experiences and thoughts. Have you encountered any of these issues, and how did you tackle them?

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