High
Overheat on Grant Vortex 20-26

Your boiler has automatically turned itself off because it has become too hot, which is a safety feature to prevent damage or dangerous conditions.

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

The 'OVERHEAT' red indicator on the control panel will flash indicating that the overheat thermostat has operated. This will automatically switch off the boiler in the case of a control malfunction causing overheating.

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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