About Fault Codex

Fault Codex is an international portal that indexes boiler and heating-appliance fault codes. Pick a brand, model and fault code and you instantly get the meaning, the likely cause and a direct link to the manufacturer's official manual, with the exact page number.

What we offer

  • A structured, searchable index of fault codes across brands and models.
  • Clear, independently written explanations in Dutch and English.
  • A direct link to the manufacturer's own official manual and support page. We never re-host their PDFs.

Independence & copyright

Fault Codex is independent and not affiliated with the manufacturers. Our value is the structured index and the link to the official source, never a copy of it.

Company details

CompanyFault Codex
AddressBulgaria
EIK(to be registered)
BG VAT(pending)
ContactVia the contact form