Dishwasher Ariston The codes are: Led 1: Water leakage at the base, overfilled. Led 2: Water inlet. Led 3: NTC probe Led 4: Heating time exceeded. Led 1 and 2: problems with drainage. Led 2 and 3: Exceeded filling time. Led 1 and 3: Filter blocked. Led 1 and 4: Software error. Led 2 and 4: Heating resistance. Led 3 and 4: Internal module fault INDESIT LED CODES Led 1 = Prewash / 3 hours Led 2 = washing / 6 h Led 3 = Rinses / 9 hours Led 4 = Drying / 12 hours LED. illuminated 1 = overflow (of water in the base) 1 + 2 = time-out bomb, or recognition software error (unscheduled timer, bad keyboard) 1 +3 = circulation pump not working 2 +3 = Not filled 2 +4 = heating circuit not working 2 = The 'broken' solenoid valve = 3 no thermistor (NTC) Working cycles 4 = Temp did not reach the same heating time (NTC pos separated from the housing). It is usually necessary to "reset" the machine after an error code has been displayed. Restoration. Change dishwasher, turn selector to stop / change and restart, after a few seconds the LED turns off allowing a new program to be selected