BoilerFaultCodesFerroli A62 Fault Code
The Ferroli A62 fault code means: your boiler's computer cannot talk to the gas valve, meaning it cannot light the flame to provide heating or hot water.. It appears on 7 Ferroli models in our database.
Technical description: No communication between controller and gas valve – controller not connected or valve damaged
What causes the Ferroli A62 fault?
This fault occurs when the boiler's main control board loses its electronic link with the gas valve, which acts as the engine's fuel pump. Without this constant digital handshake, the boiler cannot safely release gas to create a flame, so it shuts down as a safety precaution. The most common reason is a loose internal connection or a specific electronic failure within the gas valve itself.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Gas Safe Register →Ferroli models that show the A62 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Ferroli A62 fault code information on this page is sourced and cross-checked against the official Ferroli service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026