Low
S.08 on Vaillant Atmomax

Your boiler is currently taking a temporary planned break to prevent it from turning on and off too frequently, which helps protect the internal components.

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 time xx minutes

DIY fix possible

Wait for the timer (xx minutes) to count down to zeroEnsure your room thermostat is turned up higher than the current room temperatureCheck that your radiator valves are open to allow heat to circulate

Find a Gas Safe engineer
Search the official register →

Related fault codes

S.00View →S.07View →S.34View →

Related guides you might find useful

Yellow or orange flame — CO safety

Safety-critical — turn off, read this.

Read →

Is boiler cover worth it?

Break-even maths on monthly cover.

Read →

When to replace your boiler

7 signs repair isn't worth it anymore.

Read →