High
Er 10 + RESET on Biasi Advance 25C

Your boiler has shut down because it has detected that the exhaust gases are becoming dangerously hot, which is a safety feature to prevent damage to the flue system.

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

Lockout ---flue temperature probe NTC (Flue temperature > 120 °C)

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

Er 03View →Er 11View →

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