Frequently Asked Questions

Find solutions for common questions regarding the Fernox App. You can filter FAQs by language and category.

Will the Fernox App work on tablet?

The Fernox App is compatible with iOS and Android smartphones. While it is primarily designed for smartphones, it may also work on some tablets.

How do I contact customer support?

You can contact customer support by emailing digital@fernox.com

What are the steps to start the Diagnostic Water Test?

Fill the sample bottles with Heating System Water and Fill Water. Secure the lids to prevent spillage. Open the app and from the dashboard click on the Scan Icon button, then on the text selection pop-up, select New Postal Test. Use your smartphone camera to scan the QR code. For

What is included in the Water Quality Test kit?

The kit includes a sample bottle and a QR code for tracking and identification. For a detailed, step-by-step guide on how to use the Water Quality Test, please refer to this guide.

How do I prepare the samples for a System Health Check?

Fill the first bottle with Fill Water, typically from a kitchen tap. Fill the second bottle with water from the heating system. Ensure both are securely sealed to avoid spillage. For a detailed, step-by-step guide on how to use the System Health Check, please refer to this guide.

What do I receive after completing the System Health Check?

A PDF certificate detailing the diagnostic results will be emailed to you and stored in your account for future reference.

What is the System Health Check?

The System Health Check is a premium postal sampling service that diagnoses central heating issues with laboratory precision, enabling the correct action to be taken. For a detailed, step-by-step guide on how to use the System Health Check, please refer to this guide.

What is included in the System Health Check kit?

The kit includes two sample bottles and a questionnaire to be filled out and returned with the samples.

What should I do if the app crashes during testing?

Restart the app and re-enter the test details. If the issue persists, contact Fernox support.

Why didn’t I receive the PDF certificate via email?

Check your spam or junk folder. Ensure your email address is entered correctly in the app.

What if the test strip result doesn’t match the reference colours?

Use the app’s cropping and alignment tool to refine the photo, or select the closest matching value manually.

How is the pH Test performed?

Use the same test strip to evaluate pH using the upper reagent pad. Take a photo of the strip with the app and align it to the reference colours. Select the matching pH level from the dropdown.

How is the Corrosion Test performed?

Dip the test strip into the water sample for 1 second, then shake off the excess water. Compare the lower reagent pad on the strip to the reference colours. Take a photo of the strip using the app and select the matching colour from the dropdown.

What does the Turbidity Test measure, and how is it performed?

The Turbidity Test evaluates water clarity. Take a water sample and fill the tube to the 700ppm mark. Capture an image of the tube using the app, focusing on the black and yellow target at the tube’s base. Choose the corresponding turbidity level (A, B, or C) from the dropdown.

Can I save addresses for future tests?

Yes, the app allows you to save and reuse addresses for convenience.

Can I submit multiple samples at once?

Yes, but ensure each pair of samples and their corresponding Order Form are in separate envelopes.

How will I know the results are ready?

You will receive an email notification with the results PDF attached, and you can also check the app or web portal.

Why haven’t I received my results within 72 hours?

Check the app or web portal for updates. If there’s no status update, verify that the samples were posted correctly and contact Fernox support if needed.

Can I get a replacement kit if I lose or damage the one provided?

Yes, contact Fernox to request a replacement kit.

What if my results indicate an unexpected issue?

Consult the recommendations provided in the results PDF or contact a professional for further analysis and action.

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