Low
d.71 on Vaillant ecoTEC plus aquaPLUS

Your boiler is currently operating within its standard safety settings regarding the temperature of the water circulating through your radiators.

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.

What the manual says

Manufacturer manual

Maximum target value for heating system flow temperature 0 = 82 ° C, 1 = 87 °C (factory-adjustment: 82 °C)

From this model's manual
Verified against the Vaillant Ecotec Plus Aquaplus installation & service manual, page 40.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

Engineer required

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

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