High
Overheat Limit Thermostat on Potterton Suprima HE

Your boiler has automatically turned itself off because it has become too hot to operate safely.

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

Red L.E.D. will start to flash. Press the reset button (Do Not use excessive pressure), the Red L.E.D. will stop flashing and the boiler will attempt to re-light. If the control does not reset, leave the boiler for approx. 15 minutes before pressing the reset button again.

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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