High
Overheat - Red LED: FLASHING on Potterton Suprima HE

Your boiler has switched itself off because it got too hot, likely due to a temporary blockage or a pump issue, and it needs to be manually restarted once it has cooled down.

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 thermostat has operated; requires manual re-setting.

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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