High
E54 on Baxi Suprima 80

Your boiler is having trouble detecting when you turn on the hot water tap, meaning you will likely have no hot water or inconsistent temperatures.

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

Domestic hot water (DHW) flow sensor fault

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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Related fault codes

E53View →E55View →

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