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Green LED: On | Red LED: Off on Vokera Aquanova

Your boiler is working normally and is simply indicating that a hot water tap is currently turned on somewhere in your home.

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

DHW request

From this model's manual
Verified against the Vokera Boiler Aquanova installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

What causes this fault?

This status occurs when the boiler detects water flowing through the domestic hot water pipework. A flow switch inside the unit senses the movement of water and signals the burner to ignite in order to heat the water for your shower or taps. It is a sign of normal operation rather than a mechanical failure.

DIY fix possible

Check that all hot water taps are fully closedEnsure there are no leaking hot water taps or dripping showersMonitor the lights; the red light should remain off and the green light will stay on while water is running

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