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 for the boiler to complete its automatic self-reset processTurn the selector switch to the 'Reset' position for five seconds if the flashing continuesEnsure the power supply to the boiler is stable and not fluctuating
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