What if the app doesn’t recognize the QR or barcode for the heat appliance serial number?

Try manually entering the serial number. Ensure good lighting and a clean QR/barcode for scanning.

Useful Resources

Visit this comparison page to find the most appropriate test for you.

Explore country-specific availability of Fernox water tests. 

Find authorized retailers and stockists in your area.

Got questions? We’ve got answerss.

Can't find an answer to your question?

We are continuously adding more guides and FAQ’s to help you set up on the Fernox App, however if you are unable to find an answer to your question, it’s time to reach out.

Contact Support for assistance, and we’ll help resolve the issue promptly.

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