Cleaning the diffusers

Please follow the steps in the video

Find the text version of the step-by-step guide instead, under "Is there anything else we can help you with?”

Cleaning the diffusers

The diffusers are magnetically attached to the sides of the straightener’s arms. We recommend these are kept clean, free from debris and hair product residue. This will keep them functioning effectively.

Remove the diffusers by sliding them off the arms of your machine.

Soak the diffusers in warm soapy water for 30 minutes.

Rinse under running water, cleaning off any stubborn debris with a cloth, brush or fingers.

Leave to fully dry.

Refit the diffusers onto the machine.

Clean filter

You can continue to use your straightener but we recommend you clean the filter for optimum performance.

To help fix this alert follow the 'Cleaning your filter instructions'.

Cleaning the filter

Please follow the steps in the video

Find the text version of the step-by-step guide instead, under "Has this resolved the problem?”

Cleaning the filter

Your straightener has been precisely engineered. To maintain outstanding styling performance, it needs to be kept free from hair product residue and debris. A little regular maintenance will optimise performance.

Remove the filter - Unplug your straightener and let it cool down before cleaning your filter.

Hold the handle of your straightener and pull the filter unit downwards and onto the cable. Gently pull open the filter and slide it off the cable.

Wash the filter - Leave the filter unit to soak in warm, soapy water for at least 30 minutes. We recommend using a clarifying shampoo or dish soap.

Rinse under running water and using your fingertips, rub gently to thoroughly clean both the inside and outside surfaces of the filter.

Shake off excess water and leave until completely dry.

Replace the filter - Pull the filter open and slide it onto the cable.

Slide the filter unit towards the handle, align and click into place.

Your straightener will alert you if the filter isn’t in place correctly.

Reset

Your straightener has an error. Press the Power button to turn off your straightener and then turn it on again.

If this doesn’t clear the alert, turn off your straightener and unplug from the power source for 20 seconds. Plug in and turn on again.

Filter blocked

Your straightener won’t operate until the filter is cleaned.

To fix this alert follow the 'Cleaning your filter instructions'.

Too hot

Your straightener has become too hot and will need to cool down.

Turn off your straightener, unplug and leave to cool down.

No filter

The filter isn’t fitted correctly or is missing. Your straightener won’t operate until fitted.

Check that the filter is fitted correctly.

Remove the filter

Hold the handle of your straightener and pull the filter unit downwards and onto the cable. Gently pull open the filter and slide it off the cable.

Replace the filter

Pull the filter open and slide it back onto the cable. Slide the filter unit towards the handle, align and click into place.

Reset

Your straightener has an error. Press the Power button to turn off your straightener and then turn it on again.

If this doesn’t clear the alert, turn off your straightener and unplug from the power source for 20 seconds. Plug in and turn on again.

Volt alert

Your machine has either been plugged into a power source with the incorrect voltage or the voltage is fluctuating.

Plug into a stable, compatible power supply.

Adjust the airflow

Press the Airflow button to toggle between high and low airflow.

Please be aware that the airflow rates will be different between the dry and wet modes.

Cleaning the diffusers

Please follow the steps in the video

Find the text version of the step-by-step guide instead, under "Is there anything else we can help you with?”

Cleaning the diffusers

The diffusers are magnetically attached to the sides of the straightener’s arms. We recommend these are kept clean, free from debris and hair product residue. This will keep them functioning effectively.

Remove the diffusers by sliding them off the arms of your machine.

Soak the diffusers in warm soapy water for 30 minutes.

Rinse under running water, cleaning off any stubborn debris with a cloth, brush or fingers.

Leave to fully dry.

Refit the diffusers onto the machine.

Cleaning the tension bars

Please follow the steps in the video

Find the text version of the step-by-step guide instead, under "Is there anything else we can help you with?”

Cleaning the tension bars

Over time, hair product residue may build up on the tension bars. These bars sit at the top of the inside of each arm and it’s important to keep them clean and free from debris.

Ensure your machine is cool, switched off and unplugged.

Unlock the machine arms.

Use a clean soft-bristled brush, such as a toothbrush, to remove any debris from the tension bars.

Use a soft, lint-free cloth to remove any remaining residue.

Close and lock the arms once finished.

Cleaning the filter

Please follow the steps in the video

Find the text version of the step-by-step guide instead, under "Has this resolved the problem?"

Cleaning the filter

Your straightener has been precisely engineered. To maintain outstanding styling performance, it needs to be kept free from hair product residue and debris. A little regular maintenance will optimise performance.

Remove the filter - Unplug your straightener and let it cool down before cleaning your filter.

Hold the handle of your straightener and pull the filter unit downwards and onto the cable. Gently pull open the filter and slide it off the cable.

Wash the filter - Leave the filter unit to soak in warm, soapy water for at least 30 minutes. We recommend using a clarifying shampoo or dish soap.

Rinse under running water and using your fingertips, rub gently to thoroughly clean both the inside and outside surfaces of the filter.

Shake off excess water and leave until completely dry.

Replace the filter - Pull the filter open and slide it onto the cable.

Slide the filter unit towards the handle, align and click into place.

Your straightener will alert you if the filter isn’t in place correctly.

Styling tips

For advice on how to best use your Dyson Hairstrait™ please follow the steps in the video.

Find the text version of the step-by-step guide instead, under "Is there anything else we can help you with?”

Straightening from dry

Unlock the arms.

Set your straightener to Dry mode.

If using idle mode, your straightener's airflow will reduce between passes, then increase as soon as you close the arms.

Idle mode can be toggled on and off in the the settings menu.

In Dry mode, your straightener has a choice of temperatures and an additional Boost when needed.

Use Cold mode to set your style. Hold your straightener with the arms shut and direct the airflow down the hair section to smooth and set.

Straightening from wet

Your straightener is designed to be used with towel-dried hair, not dripping wet hair. Once towel-dried, detangle your hair with a brush or comb.

For the optimum experience, use maximum airflow and a higher temperature, and direct the airflow towards your roots.

Before starting to straighten your hair, dry your roots with the arms of your straightener closed. You can use your straightener with the arms locked or just hold them closed.

Unlock the arms.

Set your straightener to Wet mode.

If using idle mode, your straightener's airflow will reduce between passes, then increase as soon as you close the arms.

Idle mode can be toggled on and off in the the settings menu.

Your straightener will give you a choice of temperatures that you can change according to your hair type and styling preference. Use lower temperatures for finer hair, and higher temperatures for thicker hair.

Hold your straightener so that the airflow is directed downwards and start to pass sections of hair through the arms. Repeat until each section is dry. Change the airflow and temperature settings as required.

Use Cold mode to set your style. Hold your straightener with the arms shut and direct the airflow down the hair section to smooth and set.

Auto pause

The Dyson Airstrait™ will auto pause when left for three seconds with the arms open. This is an energy saving feature. Pick up the machine, close the arms or press a button (except the power button) to wake it up.

You can prevent your straightener from Auto pausing.

Press and hold the Mode button on your straightener until the settings menu appears.

Use the Mode button to scroll through the menu options.

Press the Cold mode button to select and press again to toggle between on and off.

Volt alert

Your machine has either been plugged into a power source with the incorrect voltage or the voltage is fluctuating.

Plug into a stable, compatible power supply.

Cleaning the filter

Please follow the steps in the video

Find the text version of the step-by-step guide instead, under "Has this resolved the problem?”

Filter blocked

Your straightener won’t operate until the filter is cleaned.

Cleaning the filter

Please follow the steps in the video

Find the text version of the step-by-step guide instead, under "Is there anything else we can help you with?”

Too hot

Your straightener has become too hot and will need to cool down.

Turn off your straightener, unplug and leave to cool down.

Remove the filter

Hold the handle of your straightener and pull the filter unit downwards and onto the cable. Gently pull open the filter and slide it off the cable.

Replace the filter

Pull the filter open and slide it back onto the cable. Slide the filter unit towards the handle, align and click into place.

Try a different plug socket

Try the machine in a different plug socket.

The ALCI may have tripped whilst in use. Please perform the following checks.

Plug the Dyson Airstrait™ into the wall and press the yellow ‘test’ button.

The red ‘reset’ button will now click out of place. To reset the ALCI, unplug the Dyson Airstrait™ and press the ‘reset button’.

Plug the machine back in and retest.

Try a different plug socket

Try the machine in a different plug socket.

Reset

Your straightener has an error. Press the Power button to turn off your straightener and then turn it on again.

If this doesn’t clear the alert, turn off your straightener and unplug from the power source for 20 seconds. Plug in and turn on again.

How to buy and fit parts for your machine

Get original replacement parts direct from Dyson and learn how to fit them with your machine.

The diffusers are magnetically attached to the sides of the straightener’s arms.

Gently pull the existing diffusers away.

To fit your diffusers, slide them onto the straightener’s arms until they lock into place.

Unplug your straightener from the mains electricity supply and allow it to cool down.

Hold the handle of your straightener and pull the existing filter unit downwards and onto the cable.

Gently pull open the new filter unit and slide it onto the cable. Slide the filter unit towards the handle and twist until it snaps into place.

Serial number location

On the power cord near the plug.

As with many electrical products, it is normal to hear a quiet buzzing noise from the Dyson Airstrait™ straightener when the machine is plugged in.

The buzzing noise may appear louder as the machine is held close to your ear during use.

At times the Dyson Airstrait™ straightener can make a faint siren like noise due to the circulation of air. If the issue is persistent please arrange an exchange.

Ensure the lock button is clear of debris and slide the button to open and close the arms.

Check that idle mode hasn’t been turned off. If Idle mode has been turned off the machine won’t auto pause when being used in the high airflow setting.

The machine will also be unable to enter standby mode.

To turn idle mode on or off press and hold the Mode button on your straightener until the settings menu appears.

Use the Mode button to scroll through the menu options until you get to idle mode. Press the Cold mode button to select and press again to toggle between on and off.

Your straightener is designed to be used with dry or towel-dried hair. Detangle your hair with a brush or comb.

For best results, section your hair before beginning.

Hold the Dyson Airstrait™ with a looser grip and let the machine do the work for you. You don’t need to apply as much tension.

Your straightener will give you a choice of temperatures that you can change according to your hair type and styling preference. Use lower temperatures for finer hair, and higher temperatures for thicker hair.

Temperature control button

Five precise temperatures for wet or dry styling, plus optional Boost mode.

Airflow button

Two speed settings, low flow and high flow.

Cold mode button

Use to set your style.

Mode button

Style from wet or dry.

Power button

Power on/off.

Adjust the temperature

Press the Temperature control button to change the setting for your hair type and styling preference.

There are five precise temperatures for wet or dry styling, plus an optional Boost mode.

Adjust the temperature

Press the Temperature control button to change the setting for your hair type and styling preference.

There are five precise temperatures for wet or dry styling, plus an optional Boost mode.

Adjust the airflow

Press the Airflow button to toggle between high and low airflow.

Access the settings menu

Press and hold the Mode button on your straightener until the settings menu appears.

Use the Mode button to scroll through the menu options.

Auto pause

Auto pause will turn the machine off if left for three seconds with the arms open. It will activate again when you pick it up.

Press the Cold mode button to select and press again to toggle between on and off.

Idle mode

If using idle mode, airflow will reduce when the arms are opened and then increase as soon as you close the arms.

Press the Cold mode button to select and press again to toggle between on and off.

Units

Press the Cold mode button to toggle between °C and °F.

Language

Use the Mode button to scroll through the language options.

Press the Cold mode button to select the language you want and then press again to confirm.

A tick will appear on the screen to confirm your selection.

Factory reset

Press the Cold mode button to start a factory reset.

Exit

Use the Mode button to scroll through to the Exit screen and press the Cold mode button to select.

Quick start guide

Please follow the steps in the video.

Find the text version of the step-by-step guide instead, under "Is there anything else we can help you with?”

Straightening from dry

Unlock the arms.

Set your straightener to Dry mode.

If using idle mode, your straightener's airflow will reduce between passes, then increase as soon as you close the arms.

Idle mode can be toggled on and off in the the settings menu.

In Dry mode, your straightener has a choice of temperatures and an additional Boost when needed.

Use Cold mode to set your style. Hold your straightener with the arms shut and direct the airflow down the hair section to smooth and set.

Straightening from wet

Your straightener is designed to be used with towel-dried hair, not dripping wet hair. Once towel-dried, detangle your hair with a brush or comb.

For the optimum experience, use maximum airflow and a higher temperature, and direct the airflow towards your roots.

Before starting to straighten your hair, dry your roots with the arms of your straightener closed. You can use your straightener with the arms locked or just hold them closed.

Unlock the arms.

Set your straightener to Wet mode.

If using idle mode, your straightener's airflow will reduce between passes, then increase as soon as you close the arms.

Idle mode can be toggled on and off in the the settings menu.

Your straightener will give you a choice of temperatures that you can change according to your hair type and styling preference. Use lower temperatures for finer hair, and higher temperatures for thicker hair.

Hold your straightener so that the airflow is directed downwards and start to pass sections of hair through the arms. Repeat until each section is dry. Change the airflow and temperature settings as required.

Use Cold mode to set your style. Hold your straightener with the arms shut and direct the airflow down the hair section to smooth and set.

Temperature control button

Five precise temperatures for wet or dry styling, plus optional Boost mode.

Airflow button

Two speed settings, low flow and high flow.

Cold mode button

Use to set your style.

Mode button

Style from wet or dry.

Power button

Power on/off.

Clean filter

You can continue to use your straightener but we recommend you clean the filter for optimum performance.

Scan the QR code on the screen to help fix this alert or follow the Cleaning your filter instructions.

Filter blocked

Your straightener won’t operate until the filter is cleaned.

Scan the QR code on the screen to help fix this alert or follow the Cleaning your filter instructions.

No filter

The filter isn’t fitted correctly or is missing. Your straightener won’t operate until fitted.

Check that the filter is fitted correctly.

Contact Dyson

There is a fault with your straightener. Please contact Dyson.

Volt alert

Your machine has either been plugged into a power source with the incorrect voltage or the voltage is fluctuating.

Plug into a stable, compatible power supply.

Too hot

Your straightener has become too hot and will need to cool down.

Turn off your straightener, unplug and leave to cool down.

Reset

Your straightener has an error. Press the Power button to turn off your straightener and then turn it on again.

If this doesn’t clear the alert, turn off your straightener and unplug from the power source for 20 seconds. Plug in and turn on again.

Cold mode

Use Cold mode to set your style. Hold your straightener with the arms shut and direct the airflow down the hair section to smooth and set.

Boost

Select Boost when styling dry hair for a shot of extra heat.

Idle mode

Between passes, your straightener will activate Idle mode. Airflow will reduce, then increase as soon as you close the arms.

Auto pause

To save energy, your straightener will Auto pause when left for three seconds with the arms open. It will activate again when you pick it up.

Stand-by

To save energy, your straightener will go into stand-by if left unattended with the arms open for more than three minutes. Press the Power button to reactivate.

Please open the PDF for the user manual.

Cleaning the filter

Please follow the steps in the video.

Find the text version of the step-by-step guide instead, under "Is there anything else we can help you with?”

Cleaning the filter

Your straightener has been precisely engineered. To maintain outstanding styling performance, it needs to be kept free from hair product residue and debris. A little regular maintenance will optimise performance.

Remove the filter - Unplug your straightener and let it cool down before cleaning your filter.

Hold the handle of your straightener and pull the filter unit downwards and onto the cable. Gently pull open the filter and slide it off the cable.

Wash the filter - Leave the filter unit to soak in warm, soapy water for at least 30 minutes. We recommend using a clarifying shampoo or dish soap.

Rinse under running water and using your fingertips, rub gently to thoroughly clean both the inside and outside surfaces of the filter.

Shake off excess water and leave until completely dry.

Replace the filter - Pull the filter open and slide it onto the cable.

Slide the filter unit towards the handle, align and click into place.

Your straightener will alert you if the filter isn’t in place correctly.

Cleaning the tension bars

Please follow the steps in the video

Find the text version of the step-by-step guide instead, under "Is there anything else we can help you with?”

Cleaning the tension bars

Over time, hair product residue may build up on the tension bars. These bars sit at the top of the inside of each arm and it’s important to keep them clean and free from debris.

Ensure your machine is cool, switched off and unplugged.

Unlock the machine arms.

Use a clean soft-bristled brush, such as a toothbrush, to remove any debris from the tension bars.

Use a soft, lint-free cloth to remove any remaining residue.

Close and lock the arms once finished.

Serial number location

On the power cord near the plug.