E00 High

Biasi E00 Fault Code

The Biasi E00 fault code means: your boiler's computer has encountered a software glitch or internal communication error and cannot start correctly.. It appears on 1 Biasi model in our database.

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description: Diagnostic or internal software error
Typical repair cost £280-450 (including labour)

DIY fix possible

Locate the reset button on the control panel.Press and hold the reset button for 5 seconds.Wait for the boiler to restart; if the code returns, a professional is required.

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Biasi models that show the E00 fault code

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

Source

Biasi E00 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