BoilerFaultCodesBiasi E02 Fault Code
The Biasi E02 fault code means: your boiler has switched itself off because it has detected that it is getting too hot, likely due to a circulation problem or a temporary blockage.. It appears on 11 Biasi models in our database.
Technical description: Safety thermostat lock out
DIY fix possible
Check that all radiator valves are fully open to allow water to flow.Ensure the system pressure is between 1.0 and 1.5 bar on the pressure gauge.Try to reset the boiler by turning the control knob to the 'R' position for a few seconds and then back to 'On'.
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Gas Safe Register →Biasi models that show the E02 fault code
Click a model for the full fault code list and model-specific repair notes.
- Activa Repair: £100-280
- Advance 25C Repair: £100-250
- Antares Combi Repair: £100-220
- Antares System Repair: £100-280
- Basica Combi Repair: £90-280
- Basica System 2022 Repair: £100-220
- Dina Repair: £90-250
- Inovia 2020 Repair: £90-250
- Rinnova Adaptive Combi Repair: £100-280
- Riva Advance M96.24SM Repair: £100-£250
- Riva Plus M96.24SM Repair: £100-240
Source
Biasi E02 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