Low
d.71 on Vaillant ecoFIT Pure 412

Your boiler is simply displaying the current internal target temperature it is aiming for to heat your home, rather than indicating a faulty error.

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

Maximum heating flow set target temperature

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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