What the manual says
Manufacturer manualBoiler in anti-cycle mode
Shared across the range
This code is shared by the boilers in this range, which use the same control board. It may not be printed in this exact variant’s manual.
DIY fix possible
Wait for 5 to 15 minutes for the 'anti-cycle' timer to expireEnsure your room thermostat is turned up higher than the current room temperatureCheck that your radiator valves are open to allow heat to dissipate
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