Low
S.0 on Vaillant Home Combi

Your boiler is currently in standby mode because it has not been asked to provide any heating or hot water.

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

Heatingmode:Norequirement

From this model's manual
Verified against the Vaillant Home Combi installation & service manual, page 34.
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

Check that your room thermostat is turned upEnsure your programmer or timer is set to 'On'Confirm the hot water tap is open and calling for demand

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S.1View →S.3View →

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