Low
d.34 on Vaillant ecoFIT pure

Your boiler is displaying a diagnostic message showing its current fan speed, which is a normal status update rather than a failure.

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

Value for the fan speed

DIY fix possible

Press the 'Back' or 'Menu' button to exit the diagnostic modeTurn the boiler off and back on again if the display does not return to the standard temperature viewMonitor the boiler to ensure it continues to provide heating and hot water as normal

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Related fault codes

d.33View →F.32View →

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