Low
D.67 on Vaillant Atmomax

Your boiler is taking a short, programmed break to prevent itself from turning on and off too frequently, which protects the internal components from unnecessary wear.

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.

Technical description

Remaining burner anti-cycling time

DIY fix possible

Wait for 5 to 15 minutes for the countdown to end naturallyCheck that your room thermostat is turned up higher than the current room temperatureEnsure all radiator valves are fully open to allow heat to circulate

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