High Lockout
09 on Vokera Linea Max

Your boiler has stopped working because it has detected a problem with the gas supply or the internal valve that controls the fuel flow.

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

Gas valve circuit / low pressure error

What causes this fault?

This fault occurs when the boiler's control system loses its electrical connection with the gas valve or detects that the valve isn't opening correctly. The most common reason is a hardware failure within the valve itself, though it can also be caused by a faulty control board sending the wrong signals. Essentially, the boiler has shut down because it can no longer safely manage the flow of fuel needed to create a flame.

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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