High
RED fast blinking (0.2s) on Grant Vortex Eco

Your boiler has failed to start after several repeated attempts and has now automatically shut down for safety to prevent fuel buildup.

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

Lockout for maximum number of re-cycles

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

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