
Error E22 - residual water in the tank, and here's the rest for the future:
E01 - Power failure. All the codes E01, E02, E03, E04, and E05 indicate a problem with the power supply module.
E06 - Problems with the door contactor. Check the door switch.
E07 - Drying fan defective.
E08 - Low water level in the tank.
E09 - Error of the heating element (heater).
E10 - Flow sensor error (poor water flow can lead to overheating of the heating element).
E11 - NTC is damaged. Damaged cable or safety thermostat.
E13 - High system inlet temperature (greater than 75?C). If the dishwasher is connected to hot water, this error
may indicate a temperature sensor fault or the temperature is too high.
E14 - Water meter defective. Perhaps the pressure in the water supply network is too high.
E15 - Water in a bowl. The AQUASTOP system has been activated. Eliminate the cause of the water leaks.
E16 - Faulty inlet valve. Do not fill with water. Check inlet valve (Aquastop).
E17 - High water level - water meter needs to be checked.
E18 - The water level is too low - check the water supply valve.
E20 - Faulty circulation pump. Short circuit or open circuit in the winding pump.
E21 - The circulation pump is blocked. This can be caused by clogging or poor water pressure in the circulation pump.
E22 - Residual water in the tank.
E23 - Faulty drain pump. Drain pump coil shorted or broken.
E24 - Drain error. Pump failure.
E25 - Drain pump is blocked or pump cover is missing.
E26 - Faulty water flow sensor.
E28 - Turbidity sensor error (aqua-sensor).