Low
S.58 on Vaillant ecoTEC exclusive

Your boiler has detected unusual airflow patterns, likely caused by strong winds outside, and has temporarily limited its heat output to keep the system stable and quiet.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

Technical description

Burner modulation limitation: Modulation limitation due to noise/wind

DIY fix possible

Check for any external obstructions near the flue terminal outsideMonitor the boiler to see if the code clears once wind conditions subsidePerform a system reset if the boiler remains in a limited state after weather improves

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Related fault codes

F.28View →F.29View →S.57View →

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