Zanussi Ultra Combi 35 Fault codes & diagnostics

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

Combi Natural Gas
GC Number 47-002-02
Download the Zanussi Ultra Combi 35 manualThe official installation and service manual (PDF), the document these fault codes were read from. PDF

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Fault codes

All 1 documented codes

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c2

Your boiler has lost communication with its internal control memory chip, which stops the system from operating safely.

High Engineer only £150-300

Parts commonly replaced

  • Boiler Chip Card (BCC)
  • Main Control Board

Related codes

Full explanation for c2
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