How much does it cost to fix Biasi error code E14?

Typical repair cost for the Biasi E14 fault is £90-220 including labour.

E14 High

Biasi E14 Fault Code

Q: What does the Biasi E14 fault code mean?

Your boiler has stopped working because it cannot detect water moving through the system, often caused by low pressure or trapped air.

The Biasi E14 fault code means: your boiler has stopped working because it cannot detect water moving through the system, often caused by low pressure or trapped air.. It appears on 12 Biasi models in our database.

Technical description: Primary circuit flow switch failure (no water flow or air in the system)

Typical repair cost £90-220 (including labour)

DIY fix possible

Check the pressure gauge and top up to 1.5 bar if it is below 1.0Bleed all radiators to remove trapped air from the systemEnsure all isolation valves under the boiler are fully open

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Biasi models that show the E14 fault code

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

Source

Biasi E14 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