About errorfaq

When something throws an error code — a dishwasher flashing 4C, a car logging P0420, a PC stuck on a POST code — the first question is always the same: what does that actually mean, and what do I do about it? errorfaq answers that in plain English, and shows you where the answer came from.

What it covers

Error codes across three worlds: home appliances (dishwashers, washers, ovens), computers (BIOS/POST codes, motherboard debug LEDs, beep codes), and vehicles (OBD-II diagnostic trouble codes). Each code gets its own page with the meaning, likely causes, severity, and step-by-step fixes — and you can browse every code a brand publishes from that brand's hub page.

How it works

1. We collect publicly available manufacturer documentation — service manuals, BIOS references, and the OBD-II standard — as the ground truth.
2. A language model reads that source and extracts each error code into a structured record: its meaning, causes, and the fix steps the manual describes.
3. When you ask a question, the engine retrieves the relevant passage and answers from it — it doesn't free-associate. Every answer links back to the source so you can verify it.

Accuracy & limitations

Answers are grounded in source documents, but they are summaries, not a substitute for the manufacturer's authoritative procedure or a qualified technician. Some codes are manufacturer-specific and may mean different things on different equipment. Always confirm against the linked source before acting, and follow all safety guidance from the maker.

Not affiliated

errorfaq is an independent reference. It is not affiliated with, endorsed by, or sponsored by any manufacturer. Brand names and codes are used only to identify the equipment a code applies to. Spotted something wrong? Tell us — corrections are welcome.