High
Table Row 8 on Biasi Riva Plus M96.24SM

Your boiler has detected a problem with how it breathes or clears waste gases, preventing it from firing up for your safety.

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

Faulty air pressure sensor

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

Table Row 7View →Table Row 11View →

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