Low
d.06 on Vaillant ecoTEC plus aquaPLUS

Your boiler is displaying the temperature setting you have selected for your hot water, rather than an actual 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.

What the manual says

Manufacturer manual

Target value for hot water temperature

From this model's manual
Verified against the Vaillant Ecotec Plus Aquaplus installation & service manual.
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

No action is required as this is an information code, not a fault.Adjust your hot water control knob if you wish to change the target temperature.Wait for the display to return to the standard pressure or temperature reading.

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