BoilerFaultCodesTechnical description
Temporary fault code (Refer to section 7.10)
What causes this fault?
This fault occurs when the boiler's internal computer experiences a brief communication error or a glitch during its standard operating sequence. It is often triggered by a minor fluctuation in the power supply or a temporary sensor misalignment that the boiler tries to fix itself. In most cases, the system is simply performing a self-check to ensure all components are safe before continuing to provide heat.
DIY fix possible
Wait for the boiler to complete its internal self-test cyclePress the reset button if the code remains after 10 minutesMonitor the boiler for recurring faultsEnsure power to the boiler is stable and not switched off prematurely
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