BoilerFaultCodesBiasi E01 Fault Code
The Biasi E01 fault code means: your boiler has failed to light the flame, which means your heating and hot water will not work until the system is reset or the gas supply is restored.. It appears on 13 Biasi models in our database.
Technical description: Ignition failure / low gas pressure
DIY fix possible
Check that your gas emergency control valve is open and you have credit on your gas meter.Ensure other gas appliances in your home, like a hob, are working correctly.Press and hold the 'Reset' button for five seconds to see if the boiler restarts.
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Biasi models that show the E01 fault code
Click a model for the full fault code list and model-specific repair notes.
- Activ A Repair: £100-£350
- ActivA 18S Repair: £120-£350
- Advance 25C Repair: £100-£350
- Advance Plus 16S 25S 30S Repair: £120-250
- Basica Combi Repair: £100-280
- Basica System 2022 Repair: £90-280
- Dina Repair: £100-350
- Inovia 2020 Repair: £100-350
- Rinnova Adaptive Combi Repair: £100-350
- Riva Advance M96.24SM Repair: £100-£250
- Riva Compact 24S (M90E.24S) Repair: £90-250
- Riva Compact HE M96a Repair: £120-250
- Riva Compact HE MK2 Repair: £120-250
Source
Biasi E01 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 7 July 2026