Baxi 224 Combi 2 Fault codes & diagnostics

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

Combi Natural GasLPG 24 kW 2022-present
GC Numbers 47-077-2147-077-22
Download the Baxi 224 Combi 2 manual The official installation & service manual (PDF) — the exact document these fault codes were verified against. PDF

The fault code is already on your display

Note it down before pressing reset — resetting clears the code immediately. How to read fault codes →

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
47-077-21 200 224 COMBI 2016–present
47-077-22 200 228 COMBI 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.

Fault codes

All 1 documented codes

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10

Your boiler has experienced a persistent error and has locked itself out for safety, requiring a manual restart to try and restore service.

High DIY-safe £80-250

What to check first

  1. Locate the reset button (on this model, it is often a button or a selector dial position marked 'R').
  2. Press or turn to the 'Reset' position and hold for 3-5 seconds.
  3. Wait for the boiler to attempt to restart; if the code returns immediately, do not attempt to reset again and call a professional.

Parts commonly replaced

  • Ignition Electrode
  • Printed Circuit Board (PCB)
  • Gas Valve
Full explanation for 10
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