Low
d.67 on Vaillant ecoFIT Pure 418

Your boiler is taking a temporary scheduled break to prevent the burner from switching on and off too frequently, which helps save energy and protect internal parts.

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

Remaining burner anti-cycling time (setting under d.02)

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

Wait 10 to 15 minutes for the countdown to end naturallyCheck that your room thermostat is turned up high enough to call for heatEnsure all radiator valves are fully open to allow heat to dissipate

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