Baxi 618 SYSTEM Fault codes & diagnostics

Plain-English fault code listing coming soon for this model.

System Gas 2018-present

GC Number 41-470-57

Download the Baxi 618 SYSTEM manual The official installation & service manual (PDF) — the exact document these fault codes were verified against. PDF

Versions & GC numbers

Which version do you have?

The GC number on your boiler's data badge identifies the exact appliance and production years, as recorded in the UK Product Characteristics Database.

GC number	Appliance (register name)	Produced
41-470-57	618 SYSTEM 18	2018–present

Appliance names and production years are taken from the UK Product Characteristics Database (the SAP/SEDBUK register). Where a GC number is also printed in this model's own manufacturer manual, both sources were checked to agree.

Fault code data coming soon

We're compiling the fault code list for the Baxi 618 SYSTEM. Check back soon, or search above for a different model.

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