Ideal INDEPENDENT SYSTEM Fault codes & diagnostics

20 fault codes with plain-English explanations, severity ratings, DIY guidance, and repair cost estimates.

System Gas 2016-present
GC Numbers 41-750-7041-750-7141-750-72
Download the Ideal INDEPENDENT SYSTEM manual The official installation & service manual (PDF) — the exact document these fault codes were verified against. PDF

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Severity at a glance

Each cell = one fault code. Hover to identify.
20 Unrated
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
41-750-70 INDEPENDENT SYSTEM s18 2016–present
41-750-71 INDEPENDENT SYSTEM s24 2016–present
41-750-72 INDEPENDENT SYSTEM s30 2016–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.

Just want the most common Ideal INDEPENDENT SYSTEM faults?
The top 6 problems in plain English — with causes, DIY checks and repair costs.
Fault codes

All 20 documented codes

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