Low
PO on Biasi Rinnova Adaptive Combi

Your boiler is simply finishing a standard cooling cycle and is not currently experiencing a breakdown.

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

Pump active for the post-circulation phase (flashing PO + flashing temperature).

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.
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

Wait for the boiler to finish circulating water (usually 1-5 minutes).Monitor the display until the PO code disappears and the temperature returns to normal.No further action is required as this is normal operation.

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All 51 fault codes on the Rinnova Adaptive Combi

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

bPcPdPE01E02E03E04E05E06E07E08E09E10E11E12E13E14E15E16E17E18E19E20E21E22E23E24E25E26E32E40E42E44E50E62E65E68E77E78E79E89E91E96E97E99hPL1L01LPWrench symbol

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