Low
Power ON LED (Green) on Halstead Ace High

Your boiler is working perfectly fine and is simply waiting for you to turn on a tap or adjust your heating settings.

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.

Technical description

Boiler is in service. If no other LEDs are illuminated, the appliance is awaiting a demand for heating or hot water.

DIY fix possible

Check your room thermostat is set to a higher temperature than the current room temperature.Ensure the timer or programmer is set to 'On' or 'Timed'.Check that the hot water demand is active by opening a tap.

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