High Lockout
E 60 on Vokera Hydra

Your boiler's internal computer is struggling to read its own settings, meaning it has temporarily stopped working to prevent incorrect operation.

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

Parameter anomaly

What causes this fault?

This fault occurs when the boiler's internal memory becomes corrupted or the software settings are no longer aligned with the physical hardware. The most common reason is a technical glitch within the central control board, which prevents the boiler from knowing the correct safety limits and operating instructions.

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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