How much does it cost to fix Biasi error code Flue temperature probe lockout?

Typical repair cost for the Biasi Flue temperature probe lockout fault is £120-£240 including labour.

Flue temperature probe lockout High

Biasi Flue temperature probe lockout Fault Code

Q: What does the Biasi Flue temperature probe lockout fault code mean?

Your boiler has shut down completely because it detected that the exhaust gases were becoming too hot, which is a safety protocol to protect the internal components.

Also written as FLUETEMPERATUREPROBELOCKOUT — same fault.

The Biasi Flue temperature probe lockout fault code means: your boiler has shut down completely because it detected that the exhaust gases were becoming too hot, which is a safety protocol to protect the internal components.. It appears on 1 Biasi model in our database.

Technical description: Lockout condition triggered by the flue temperature probe.

Typical repair cost £120-£240 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Biasi models that show the Flue temperature probe lockout fault code

Click a model for the full fault code list and model-specific repair notes.

Riva Advance M96.24SM Repair: £120-£240

Source

Biasi Flue temperature probe lockout fault code information on this page is sourced and cross-checked against the official Biasi service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026