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 automatically reset itselfIf the flashing continues, turn the temperature control knob to 'Reset' for 5 seconds and then back to your desired settingEnsure there are no external power surges by checking if other appliances are affected
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