BoilerFaultCodesWhat the manual says
Manufacturer manualThe boiler is operating in frost protection.
Community-sourced, unverified
We could not tie this code to a specific manual. Treat it as indicative only.
DIY fix possible
Check that your gas supply is turned onEnsure the boiler power switch remains on so the protection can finish its cycleIf it is very cold, check that the white plastic condensate pipe leading outside isn't frozen solidOnce the boiler warms the internal water above 14°C, the code will disappear automatically
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Related fault codes
All 45 fault codes on the Instinct2 24
Seeing a different code? Every code this model can display, in one place.