Low
S.030 on Vaillant ecoTEC Plus 832

Your boiler is currently in standby mode because it is not receiving a signal from your thermostat to turn on the heating.

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

Nodemandispresentforthethermostat.Heatingmodeisblocked.

From this model's manual
Verified against the Vaillant Ecotec Plus installation & service manual, page 79.
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 or smart controller is set to a temperature higher than the current room temperature.Ensure your heating timer or programmer is currently scheduled to be in an 'ON' period.Check if your thermostat batteries need replacing or if your smart controller has lost its Wi-Fi connection.

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Related fault codes

S.031View →S.032View →

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