BoilerFaultCodesYour boiler is currently idle and waiting for a signal from the thermostat to provide heating or hot water.
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: System Standby
What causes this fault?
This is not a fault but a normal status message indicating the boiler has reached its set temperature or has satisfied the demand from your controls. It occurs when the appliance is powered on and functioning correctly, but is simply waiting for the thermostat to tell it to start firing again. If your house is cold while this is displayed, the issue likely lies with your external programmer or room thermostat rather than the boiler itself.
DIY fix possible
Check that your room thermostat is turned up high enough to trigger a heat demand.Ensure your programmer or timer is set to an 'On' period.Check that the thermostatic radiator valves (TRVs) are open in the rooms you wish to heat.
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