High
ON FLASH FLASH on Baxi Suprima 50

Your boiler has detected that water is either not moving through the system properly or there is no water inside the unit, causing it to overheat quickly.

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

Circulation error or dry fire

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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