Boiler stand-by Low

Vokera Boiler stand-by Fault Code

Also written as BOILERSTANDBY — same fault.

The Vokera Boiler stand-by fault code means: your boiler is currently in standby mode and is working exactly as it should, waiting for a signal from your thermostat or hot water tap to start heating.. It appears on 5 Vokera models in our database.

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: Boiler stand-by

DIY fix possible

Check your room thermostat or smart controller is set to a temperature higher than the current room temperature.Ensure your programmer or timer is set to the 'On' or 'Timed' position.Try opening a hot water tap to see if the boiler fires up to heat water.

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Vokera models that show the Boiler stand-by fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Vokera Boiler stand-by fault code information on this page is sourced and cross-checked against the official Vokera service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026