Er14+ High

Biasi Er14+ Fault Code

Also written as ER14 — same fault.

The Biasi Er14+ fault code means: your boiler has sensed that water is not moving through the system properly or is overheating too quickly, causing it to shut down for 10 minutes to protect itself.. 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: Faulty primary circuit (nowater or absence of flow) (temperature increase > 2K/s) (the boiler can’t restart for 10 minutes)
Typical repair cost £120-350 (including labour)

DIY fix possible

Check the pressure gauge and top up to 1.5 bar if it is too lowEnsure all radiator valves and isolation valves under the boiler are fully openBleed your radiators to remove any trapped air pockets

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Biasi models that show the Er14+ fault code

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

Source

Biasi Er14+ 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