How I check every guide on this site

You’re about to take advice from someone on the internet about a machine that cost you several hundred dollars, at a moment when your cat probably can’t use it. It’s fair to want to know where that advice comes from.

My name is Alberto Guardia. I’m a physician working in medical informatics, I run this site on my own, and I share my home with Wolfgang — a 13-year-old Chartreux with firm opinions about litter and none whatsoever about firmware. He is, more or less, why this exists.

Here is exactly how a guide gets written, and what I hold myself to.

Four things I hold myself to

  • The free fix always comes first. Cleaning, reseating and resetting are published before anything you have to buy — even though those pay nothing. For most of the faults documented here, that’s where it ends, and you spend nothing at all.
  • I don’t take anything from manufacturers. No sponsorships, no early access, no affiliate deal negotiated directly with a brand. If a fix really is “buy a new one,” I’ll say so — and I’ll say when it isn’t.
  • I don’t publish a fix I can’t source. If I can’t find a light code, a button sequence or a timing in a manual, in official support documentation, or in several owner reports that agree, it doesn’t go on the page. A guide with a hole in it is more useful than a guide with a guess in it.
  • I’m not a vet, and this isn’t veterinary advice. If your cat has stopped using the box, is straining, or the litter tells you something is wrong, that’s a conversation with your vet — not a hardware fix.

Where the facts come from

Every factual claim in a guide — an error code, an LED colour, a button name, a duration, a price — has to come from one of three places, in this order of preference:

  1. The manufacturer’s own manual. I keep a local library of around thirty official PDF manuals for the devices covered here, so I’m reading the same document that shipped in your box — including the older revision, when the fault only affects one.
  2. Official support articles. Whisker, PETKIT, Sure Petcare and the others publish support pages that are often more current than the printed manual. Where a guide relies on one, it links to it.
  3. At least two independent owner reports that agree. Some failure patterns only show up after a year of real use and never make it into any manual — seals that harden, sensors that drift, a part that quietly changed between production runs. One forum post is an anecdote. Several owners describing the same sequence on the same model is a pattern.

If none of the three produces an answer, the guide says so plainly instead of filling the gap.

What happens before a guide goes live

1. Start from the symptom, not the product

Guides begin from what you can actually see — a light, a noise, a message in the app — because that’s all you have when something goes wrong.

2. Free fixes first, spending last

Cleaning, reseating and resetting come before any part, and any part comes before replacing the unit. If a five-minute clean solves it, that’s step one — even though it earns nothing.

3. Say when to stop

Every guide ends with the point at which you should stop and call the manufacturer instead. On a unit still under warranty, a repair costs nothing and opening it yourself usually voids the cover.

4. Check the links still resolve

Every internal link, anchor and step reference is verified automatically before publication. A broken guide at the wrong moment is worse than no guide.

When a guide is wrong

Firmware changes. Manufacturers redesign parts mid-generation. Something that was true in January stops being true in June. When that happens I’d rather rewrite the guide than leave it standing.

The date at the bottom of every guide is the date that guide was last updated — it isn’t reset by republishing the site, so it means what it says. If you find something that’s wrong, out of date, or doesn’t cover your revision, tell me: compliance@pet-infrastructure.com. Reader corrections are the single best source of improvement this site has.

How this gets paid for

Plainly: some links to replacement parts are Amazon affiliate links. If you buy through one, Amazon pays me a small commission and you pay exactly the same price.

What that does not buy is the content. The free fix always comes first, even when it means you buy nothing at all — which, for most of the faults documented here, is exactly what happens. The full policy is on the disclosure page.

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