BoilerFaultCodes E11 High
Biasi E11 Fault Code
The Biasi E11 fault code means: your boiler thinks a flame is present before it has even started the ignition process, which is a safety conflict that prevents it from firing up.. It appears on 10 Biasi models in our database.
Technical description: Parasite flame (flue detected before ignition)
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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Search the official register for a qualified engineer in your area.
Gas Safe Register →Biasi models that show the E11 fault code
Click a model for the full fault code list and model-specific repair notes.
- Advance 25C Repair: £120-300
- Antares Combi Repair: £120-350
- Antares System Repair: £120-300
- Basica Combi Repair: £120-300
- Basica System 2022 Repair: £120-300
- Dina Repair: £120-£250
- Inovia 2020 Repair: £120-£280
- Inovia 2020 Repair: £120-280
- Rinnova Adaptive Combi Repair: £120-280
- Riva Plus M96.24SM Repair: £120-£350
Source
Biasi E11 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