Low
d.07 on Vaillant ecoFIT Pure 835

Your boiler is displaying the current target temperature setting for your hot water storage, rather than an error or breakdown code.

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

Set target temperature for the domestic hot water cylinder

From this model's manual
Verified against the Vaillant Ecofit Pure 830 installation & service manual, page 29.
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

Press the 'Menu' or 'Back' button to return to the main displayAdjust the hot water temperature dial if the displayed value is not what you desireIdentify if the boiler is stuck in a setting menu and restart the power if the screen does not clear

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Related fault codes

d.00View →d.01View →d.40View →

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