Low
d.71 on Vaillant ecoFIT Pure 418

Your boiler is notifying you that the maximum temperature limit for your heating water has been reached or set.

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 heating flow set target temperature

From this model's manual
Verified against the Vaillant Ecofit Pure 830 installation & service manual, page 31.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

DIY fix possible

Check the temperature control dial on the front of the boilerAdjust the heating temperature setting if it is too low for your comfortObserve if the radiators are reaching the desired warmth

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