I purchased an Airthings Corentium Home 2 about two months ago. It worked normally for roughly the first month, then the radon reading became stuck at 0.4 pCi/L and eventually started showing constant zero readings along with a flashing “Contact Support” message.

I replaced the batteries, restarted the measurements, and followed the troubleshooting instructions provided by Airthings. The problem remained.

Airthings support then escalated the case to their technical team. After reviewing it, they told me that “troubleshooting has been exhausted.” However, instead of repairing or replacing a device that failed after only about two months, they said it had “fallen outside the parameters of our warranty policy” and offered me a 30% discount on another purchase.

I provided the serial number and purchase invoice as requested.

I understand that products can fail. What I don't understand is how a device that failed approximately two months after purchase can already be considered outside the warranty policy.

Before buying, I recommend checking the warranty terms carefully and considering how warranty claims are handled when a device actually fails.

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