Low
d.05 on Vaillant ecoTEC plus Aquaplus

Your boiler is currently monitoring or measuring the temperature of the water as it leaves the unit to heat your home.

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

Flow temperature setting

Engineer required

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

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