Medium
Blinking RED on Grant Vortex Eco

Your boiler has detected that it is running too hot and has automatically slowed itself down to prevent any damage to its internal components.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

Technical description

Thermal self-protection mode. The fluid temperature exceeds the maximum value at a specific ambient temperature. The pump will automatically reduce power consumption, speed, and performance.

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Related fault codes

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