Low
D.008 on Vaillant ecoTEC Plus 832

Your boiler is currently receiving a signal from your wall thermostat indicating that it is calling for heat, but it is not a system fault.

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

Roomthermostatstatus(230V)

From this model's manual
Verified against the Vaillant Ecotec Plus installation & service manual, page 73.
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 your wall thermostat to see if it is set to 'on' or 'heating demand'.Adjust the thermostat temperature setting down to see if the status changes.If the boiler is running normally, this code is simply confirming the thermostat is communicating with the unit.

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