Low
02 on Biasi Dina

Your boiler is currently running a manual test mode designed for engineers to check performance, and it is not a standard functional fault.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

What the manual says

Manufacturer manual

Activation of the chimney sweep function at maximum DHW output (under P06)

Shared across the Dina 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.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

DIY fix possible

Switch the boiler to the 'Off' or 'Standby' positionWait 30 secondsSwitch the boiler back to the 'On' or 'Winter/Summer' mode to exit the test sequence

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Related fault codes

01View →

All 22 fault codes on the Dina

Seeing a different code? Every code this model can display, in one place.

01E01E02E03E04E05E06E07E08E09E10E11E14E22E25E26E50E52OFFP00P06

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