High
Er14+RESET on Biasi Activa

Your boiler has shut down because it is overheating or water is not circulating through the system properly.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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 pump (absence of water flow in the main circuit) or primary temperature above 105˚C

Engineer required

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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