E02 + RESET High

Biasi E02 + RESET Fault Code

Also written as E02RESET — same fault.

The Biasi E02 + RESET fault code means: your boiler has shut itself down because it detected that the internal water temperature has become too hot.. 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: Safety thermostat intervention lockout
Typical repair cost £90-250 (including labour)

DIY fix possible

Check that all radiator valves are fully open to allow water flowEnsure there is enough pressure in the system (typically 1.0 to 1.5 bar on the gauge)Press and hold the RESET button to see if the fault clears after the system cools down

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Biasi models that show the E02 + RESET fault code

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

Source

Biasi E02 + 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