F0 Sensor Failure
F1 NTC Failure
F2 Water Leakage
F3 Heating system failure
F4 Draining failure
F5 Rotor blocked
F6 Water tap closed
F7 Flow meter failure
F8 Water level failure
F9 Continuous water inlet
FA Optical water indicator
FB Motorised diverter valve
FC Water hardness sensor failure