BoilerFaultCodesWhat the manual says
Manufacturer manualchimney sweep function at maximum output in heating mode
Shared across the Inovia range
This code is shared by the boilers in this range, which use the same control board. It may not be printed in this exact variant’s manual.
DIY fix possible
Wait approximately 15 minutes for the test cycle to finish naturally.Try turning the mode selector dial to 'off' or 'reset' and then back to the original position.Restart the boiler by switching the power off at the fused spur and back on again.
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Related fault codes
All 47 fault codes on the Inovia 2020
Seeing a different code? Every code this model can display, in one place.