What the manual says
Manufacturer manualKeys fault.
From this model's manual
Verified against the Biasi Antares Combi installation & service manual, page 13.
DIY fix possible
Check if any control buttons are physically stuck in the 'pressed' positionGently clean the control panel surface with a dry clothTurn the boiler off at the fused spur switch, wait 30 seconds, and turn it back on to reset the electronics
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