1. The washing heater is short-circuited or has a wire disconnected.
2. The washing heater in the tub has an error. (Contact error, temperature sensor fault)
3. If the water level sensor operates without water because water is frozen or for any other reason and the temperature sensor engaged at the bottom to prevent overheating for the washing heater detects a temperature of 100 to 150 'C, the washing machine turns the input power off.