Good colleagues ... the client tells me that the programmed washing machine loads water, washes but at the time of draining it does not do so and according to it E4 appears on the display. I tested it by loading it with water and put it directly in a centrifuge ... the pump draws the water correctly and then stops but without errors it is only checked. Where can the problem be? Bomb Triac? Or will I have to change the plate directly? Thank you in advance !

Check the cover or door insurance, regards