BoilerFaultCodesTechnical description
Anticycling period
What causes this fault?
This occurs when your boiler reaches its target temperature too quickly, prompting it to temporarily pause to prevent the internal components from overheating or wearing out. It is usually caused by your radiators being turned off or your heating system being too small to dissipate the heat as fast as the boiler generates it. This isn't a breakdown, but rather a protective feature to ensure the unit runs as efficiently as possible.
This status is more common during autumn and spring when the weather is milder and your home requires less heat to stay warm.
DIY fix possible
Wait 5 to 15 minutes for the countdown to end naturallyCheck that your room thermostat is turned up higher than the current room temperatureEnsure at least one radiator valve is fully open to allow heat to circulate