Duotone Foiling & Electric Helpcenter 

<p><span contenteditable="false" draggable="true" class="fr-video fr-deletable fr-rv fr-fvc fr-dvb fr-draggable"><iframe width="100%" src="https://www.youtube.com/embed/OxjL0Fqw568??si=g8MCeEri8kEC3e8g&amp;wmode=opaque&amp;rel=0" frameborder="0" allowfullscreen class="fr-draggable"></iframe></span></p><h3 id="tool--screws-needed">Tool &amp; screws needed:</h3><ul><li>Torx key TX30 (included in your Foil Assist Screw &amp; Tool Set)</li><li>4x M6x18 &amp; washers (spare screws: <a href="https://www.duotonesports.com/en/products/duotone-electric-foil-assist-maintenance-screws-2026-40260-8008?userLanguageSwitch=true" target="_blank" rel="noopener noreferrer">Foil Assist Maintenance Screws</a> 40260-8008)</li></ul><h3 id><br></h3><h3 id="steps-to-remove-and-install-the-battery-box-or-eharness">Steps to remove and install the battery box or eHarness:</h3><ul><li>Loosen the four screws of the battery box on the inside of the eHarness.</li><li>Remove the battery box.</li><li>Attach the new battery box or the new eHarness using the four screws and washers.</li></ul><p><span class="fr-emoticon fr-deletable">&#x26A0;</span><strong style=" text-decoration: none;" id="isPasted">&#xA0;</strong><em><span style="font-size: 16px;">Ensure the valve is properly seated in the eharness hole before tightening the box to avoid damage.</span></em></p>

You can easily replace the battery box or just the harness by detaching four screws and the washers.

How do I replace the battery box or eHarness?

Foil Assist

Replacements & Repairs

What is Prone Foiling?

How and where can I learn Prone Foiling?

How long does it take to learn Prone Foiling?

What are good spots for Prone Foiling?

What are good prerequisites for learning prone foiling?

How difficult is prone foiling?

How dangerous is Prone Foiling? What do I need to watch out for?

General

What is the right board for Prone Foiling?

How big should my board be for Prone Foiling?

Can I also use my Wing Foiling board for Prone Foiling?

Should I use a leash when Prone Foiling?

Board

What is the right foil for Prone foiling?

Can I also use my foils for Wing Foil also for Prone Foiling?

What is the right mast length for prone foiling?

Foils

Prone

What is Downwind Foiling?

What is the fascination of Downwind Foiling?

How and where do I learn Downwind Foiling?

Is Downwind Foiling difficult?

How long does it take to learn Downwind Foiling?

What safety precautions should I take when Downwind Foiling?

How do I organize logistics for Downwind Foiling?

How much wind and wave do you need for Downwind Foiling?

What is the right board to learn Downwind Foiling?

Which boards are better for Downwind Foiling - long and narrow or wider and shorter?

What is the right foil to learn Downwind Foiling?

What is the appropriate mast length for Downwind Foiling?

What is the appropriate paddle for Downwind Foiling?

To what length should I adjust my paddle for Downwind Foiling?

Paddle

Downwind

What is Parawinging?

What are the advantages and disadvantages of Parawinging compared to regular Wing Foiling?

How and where can I learn Parawinging?

How difficult is Parawinging compared to Wing Foiling?

Will Parawinging replace Wing Foiling?

Can you sail upwind with a Parawing?

What are the risks of Parawinging and what should I be aware of?

Can I also Parawing in breaking waves?

What size Parawing do I need to get started?

Double Surface vs. Single Surface Parawings - which is better?

How easy is it to stow a Parawing?

How easily do the lines get tangled when Parawinging?

Do I need a leash on the wing when Parawinging?

What happens if I release the Parawing? Can my Parawing sink?

Do I need a harness for Parawinging? Which harness line is recommended?

Wings

What is the right board for Parawinging and how big should it be?

Can I also Parawing with my Wingfoil board?

Can I learn to Parawing on a Downwind board?

Should I use a board leash when Parawinging?

Boards

Want to know, what foil is suitable for Parawinging? copy

What is the right foil size for learning to Parawing? copy

Parawing

What is Pump Foiling?

What contributes to the growing popularity of Pump Foiling?

How and where do I learn Pump Foiling?

How long does it take to learn Pump Foiling?

What are good spots and starting places for Pump Foiling?

What are good preconditions for learning Pump Foiling?

How difficult is Pump Foiling?

What is the appropriate board for Pump Foiling?

Can I use my Wing Foil Board for Pump Foiling?

What foil is suitable for Pump Foiling?

What is the minimum foil size needed for Pump Foiling?

What is the appropriate mast length for Pump Foiling?

What is the appropriate mast length for Pump Foiling? copy

Pump

What is Wake Foiling?

How and where can I learn Wake Foiling?

How long does it take to learn Wake Foiling?

What are good spots for Wake Foiling?

What kind of boat do you need for Wake Foiling?

What protective gear should I wear when Wake Foiling?

How difficult is Wake Foiling?

Do I need foot straps when Wake Foiling?

What foil and size are suitable for Wake Foiling?

What is the right mast length for Wake Foiling?

Wake

What parts is the Foil Assist composed of?

Which watersports disciplines can the Foil Assist be used for?

Can kids use the Foil Assist?

Foil Assist Basics

What's included in the Foil Assist set?

How do I prepare for the (first) session?

How do I assemble the Foil Assist Mast?

How can I fix the play between the adapter, mast, and fuselage?

How to install the Propeller Guard (Cruise eMast)?

How do I install the power cable and leash?

How do I install the batteries and pair the remote?

How do I use the Watch Ring Remote?

How do I install/remove the motor?

How do I install/remove the connector and cable?

How do I change the propeller blades?

How do I choose the correct cable length for my Foil Assist?

How do I mount the 3-blade SLS propeller?

How to install the Battery Box Mounting Set?

Foil Assist Setup and Operation

What protective gear should I use?

How do I crash safely with the Foil Assist?

Safety

How do I charge the remote?

How do I charge and store the batteries?

How long does it take to charge the batteries?

How long do the batteries last?

Are there different charging plugs available for the battery charger?

Batteries and Charger

How do I keep my Foil Assist in top condition?

Care & Maintenance

What can I learn about the Foil Assist in the Academy App?

Where will I find the Duotone (Wing) Academy App?

Do I need to pay for the app?

I have no internet connection, can I still watch my training videos?

(Wing) Academy App

How can I ensure my Foil Assist is protected during travel?

How do I travel by air with the Foil Assist?

Travel

How do I replace the receiver in the battery box?

How do I change the propeller blades mount?

How do I change the bearings?

How do I replace the motor pod cover?

How do I replace the ESC?

What can I do if the system doesn't start up or pair?

What can I do if the remote is not working?

The motor seems to be lacking power. What can I do?

The motor is not turning smoothly.

I am having connection issues and the motor is beeping. How can I fix this?

The Foil Assist cuts out during the session (no beeping sound).

There's no response from the charger when putting the batteries to Storage Mode.

What can I do if the charger is not charging or discharging?

The battery does not turn on, charge or discharge.

The batteries turn on normally, but not when installed in battery box.

The fully charged batteries are not lasting as long as usual.

The battery box slider is not locking.

There's seawater residue in the mast pod area.

Troubleshooting

How do I dispose of the electrical components?

Recycling & Disposal

Do you have an issue that isn’t covered in the Help Center?

Customer Service

User Manual

Can I register my Foil Assist for a 6‑month warranty extension?

Product Registration / +6 Months Warranty

Which foil should I start with?

Foil design parameters

Low, Mid or High Aspect - which type of foil is right for me?

Mast and fuselage length - what suits me?

Foil configurator - how does the configurator work?

Shims - what do shims do and how do I use them?

What foil to choose out of the Duotone Foil range?

What are the differences between Foils in the Duotone SLS vs. D/LAB technology?

What are the differences between Alu vs. Carbon masts?

What is the compatibility between the different carbon and aluminum masts & fuselages?

What are the differences between the QM vs. Screw On system?

How does a hydrofoil work?

What are the differences between the various foil disciplines - Wing / Prone / Kite / Windsurf / Downwind / Wake / Pump / SUP?

Where and how can I find the nearest Duotone Shop?

General Foiling Basics

Where will I find the Duotone Wing Academy App?

Who was the DUOTONE Wing Academy App designed for?

How do I work out my skill level?

Academy App

How can I increase the longevity of my board?

How can I increase the longevity of my foot straps?

Board Care & Maintenance

How can I increase the longevity of my foil?

How can I increase the longevity of my foilbox?

Foil sanding - what's the benefit and how do I sand?

Foil Care & Maintenance

My wing has a small crack in the canopy, what to do?

Wing Repair

My board is slightly damaged, what can I do?

My inflatable board has a small hole, how can I repair it?

How do I replace the foot straps?

Board Repair

Do-It-Yourself Repair

Packaging Information - Boards & More GmbH

PACKAGING DISPOSAL

Why did you stop CO2 compensation?

How sustainable is it if team riders fly around the world for competitions or a few promotional photos?

How do I replace the battery box or eHarness?Updated 4 months ago

Tool & screws needed:

Steps to remove and install the battery box or eHarness: