How much does it cost to fix Biasi error code Er11+RESET?

Typical repair cost for the Biasi Er11+RESET fault is £120-300 including labour.

Er11+RESET High

Biasi Er11+RESET Fault Code

Q: What does the Biasi Er11+RESET fault code mean?

Your boiler detects a flame when it shouldn't be there, so it has shut down as a safety precaution.

Also written as ER11RESET — same fault.

The Biasi Er11+RESET fault code means: your boiler detects a flame when it shouldn't be there, so it has shut down as a safety precaution.. It appears on 1 Biasi model in our database.

Technical description: Parasite flame

Typical repair cost £120-300 (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 Er11+RESET fault code

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

Activa Repair: £120-300

Source

Biasi Er11+RESET 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