BoilerFaultCodesYour boiler is performing a routine self-diagnostic purge or testing phase and is not currently experiencing a breakdown.
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: Minimum load: After successful ignition, the product is operated at minimum heat input.
What causes this fault?
This code appears because your boiler is running a brief self-test to ensure the system is stable at its lowest power setting. It occurs automatically during the startup sequence to verify that the internal components are functioning correctly before ramping up the heat. It is a sign that the boiler's internal computer is performing its standard safety and efficiency checks.
DIY fix possible
Wait for the boiler to complete its 15-minute test cycleDo not turn the boiler off, as it will reset the timerOnce the cycle finishes, the screen will return to its normal display
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