BoilerFaultCodesTechnical description
Automatic summer/winter changeover
What causes this fault?
This notification occurs when the outdoor temperature sensor detects a change in the weather that crosses a pre-set threshold. The boiler is simply informing you that it has automatically turned the central heating off for the summer or back on for the winter to save energy. It is a sign that the system's intelligent weather compensation is working correctly to manage your home's efficiency.
This code is most common during the transition periods of spring and autumn when outdoor temperatures fluctuate across the changeover trigger point.
DIY fix possible
Check the outside temperature sensor is not covered or obstructedAdjust the summer/winter threshold temperature in the user settings if the house feels too coldMonitor the boiler to ensure it switches back when the temperature drops