High
A02 on Ferroli Econcept 100

Your boiler has detected that it is dangerously hot and has shut itself down to prevent damage, likely because water is not flowing properly through the system.

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

Safety thermostat activation. Outlet sensor not active or No system circulation

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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Related fault codes

A01View →F07View →

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