High
E03 on Biasi Riva Plus M96.24SM

Your boiler has shut down because it has detected that it is overheating or there is an issue with how the exhaust gases are being monitored.

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

General intervention lockout (flue NTC or excessive temperature rise on primary 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 →

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