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
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 →

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

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