What the manual says
Manufacturer manualParameter error on printed circuit board (PCB). Temporary error, will self reset
From this model's manual
This code was read directly from the manufacturer service manual for this model.
DIY fix possible
Wait up to 10 minutes for the boiler to automatically self-resetSwitch the main electrical power to the boiler off and back on againEnsure your household electricity supply is stable and not fluctuating
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