Low
StBY on Atag A200

Your boiler is currently idle because it has reached its set temperature or there is no active request for heating or hot water.

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

Standby mode.

DIY fix possible

Check that your room thermostat is turned up higher than the current room temperature.Ensure your programmer or heating app is set to an 'On' period.Verify that the boiler's target temperature settings haven't been turned down too low.

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