How much does it cost to fix Biasi error code 2 +?

Typical repair cost for the Biasi 2 + fault is £100-250 including labour.

2 + High

Biasi 2 + Fault Code

Q: What does the Biasi 2 + fault code mean?

Your boiler has switched itself off because it has reached an unsafe temperature and needs to cool down.

Also written as 2 — same fault.

The Biasi 2 + fault code means: your boiler has switched itself off because it has reached an unsafe temperature and needs to cool down.. It appears on 2 Biasi models in our database.

Technical description: Lockout due to safety thermostat.

Typical repair cost £100-250 (including labour)

DIY fix possible

Wait 30 minutes for the boiler to cool down completelyCheck that all radiator valves are open and not blockedPress and hold the Reset button for 5-10 seconds to see if the system restarts

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Biasi models that show the 2 + fault code

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

Source

Biasi 2 + 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