BoilerFaultCodesYour boiler is currently running at its highest power setting for testing or maintenance purposes and is not indicating a permanent fault.
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: Forced full load.
What causes this fault?
This code appears because the boiler has been manually set to run at its maximum output, usually by a technician during a service or emissions test. It is not an internal component failure, but rather a specific operating mode used to check if the boiler performs correctly under full strain. Once the testing sequence is finished or the manual override is deactivated, the boiler will return to its normal temperature display.
DIY fix possible
Press the 'Reset' button to return the boiler to normal operationSwitch the boiler off and back on at the mains fused spurWait for the service technician to finish their chimney sweep or testing mode
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