High
E317 on Baxi Suprima 115

Your boiler is struggling to operate because the incoming electricity frequency does not match the required standard for its internal computer.

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

Wrong power supply electrical frequency (Hz).

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

E321View →

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