Low
S.8 on Vaillant Atmomax

Your boiler is temporarily pausing the heating because it has reached its target temperature and is waiting for a short period before restarting to prevent 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

Heating remaining cut off for XX amount of time

DIY fix possible

Check if your room thermostat is set high enough to call for heatWait approximately 10 to 20 minutes for the internal timer to expireEnsure all radiator valves are fully open

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