High
c2 on Ideal Logic Code Combi

Your boiler's electronic brain is unable to read its internal configuration card, meaning it cannot operate safely or reliably.

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

What the manual says

Manufacturer manual

BCC FAULT (BOILER CHIP CARD)

From this model's manual
Verified against the Ideal Logic Code Combi Combi installation & service manual, page 53.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

Engineer required

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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