What the manual says
Manufacturer manualminimum output in heating mode (Chimney sweep function)
Shared across the Rinnova Adaptive 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 for the chimney sweep test to finish automatically (usually takes 15 minutes)Press the 'Reset' or 'Mode' button to manually exit the test modeTurn the power off and back on again if the code persists
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Related fault codes
All 51 fault codes on the Rinnova Adaptive Combi
Seeing a different code? Every code this model can display, in one place.