High
E08 on Biasi Rinnova Adaptive Combi

Your boiler has detected a problem with the sensor that monitors the temperature of the water returning from your radiators, which prevents it from operating safely.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description

C.H. temperature return probe NTC fault

Engineer required

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Related fault codes

E07View →E09View →E11View →

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