High
E50 on Biasi Rinnova Adaptive Combi

Your boiler has detected a temperature sensor problem or a blockage that is preventing your hot water and heating from reaching the correct temperature.

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

Main circuit temp probe / D.H.W. heat exchanger / D.H.W. circuit

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

E01View →E02View →E05View →E06View →

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