Tell us what it’s doing — a flashing light, a noise, a message in the app — and we’ll take you straight to the fix for it. Most faults documented here are solved with a clean and a reset, and cost you nothing.
Find your fixSearch it, or answer three questions — both land on the same guide.
Step 1 — which brand is it?
Nothing broken — just comparing before you buy? See what a Litter-Robot really costs to run →
Some part links are Amazon affiliate links: we earn a small commission, you pay the same price. Full disclosure.
Litter-Robot 4
Sixteen documented issues — lights, connectivity, odor & maintenance — match your exact symptom.
Read the guide →Litter-Robot 5
Won't cycle automatically? Every real cause, from a full drawer to an overload.
Read the guide →Litter-Robot EVO
One light, 13 possible causes — here's how to read each one and clear it fast.
Read the guide →Litter-Robot 3
Nine documented issues — light codes, power, Wi-Fi & liner problems — match your exact symptom.
Read the guide →PETKIT Pura Max
Screen, smell, litter waste, or cover errors — Pura Max, Max 2 & Purobot Max Pro.
Read the guide →Sure Petcare
Pet door or Hub acting up? Battery, reading, clicking & connectivity issues.
Read the guide →PETKIT Eversweet
3 Pro, Max, Max 2, Ultra & Max Cordless — match your model to the right fix.
Read the guide →Full library
Every bulletin published, grouped by device family — Litter-Robot, PETKIT, Sure Petcare, Catit and more.
Open the library →Buying decisions, running costs and what these machines are actually like to live with — the questions that don’t start with an error light.
Choosing a machine
The Litter-Robot EVO, 4, and 5 differ in size, sensors, and cat capacity, not just price — here's which one actually fits your cats and your budget.
Read the article →Costs & upkeep
The Litter-Robot 5 costs more than the 4, and the Pro tier costs more still — here's what that price gap actually buys, and what it costs to own long-term.
Read the article →Costs & upkeep
The PetKit Pura Max's price tag is only part of the story — recurring refills, a short warranty, and real owner complaints all factor into what it costs.
Read the article →Curious what else is on there? See all articles →
No manufacturer sponsors this site, and no brand has ever sent a free unit. When a device is badly designed, or a part fails too young, we say so.
Cleaning, reseating, resetting — in that order, before anything you have to buy. For most of the faults documented here, you’ll spend nothing at all.
Every guide names the point where you should stop and call the manufacturer. On a unit still under warranty, a repair costs nothing — and opening it yourself usually voids the cover.
Every guide on this site is free. When a fix genuinely needs a part, the link to it is usually an Amazon affiliate link — we earn a small commission and you pay exactly the same price. No brand pays for coverage, and no commission changes which fix we put first.