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.

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

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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