The door bottom seal needs to be changed, but if you notice a fault in the door bottom operating light Technical note available in the attached document tab

The dishwasher door hinge rope is an important part because it ensures that the door closes properly. If your dishwasher door doesn't close properly or falls suddenly when opened , the hinges are likely to blame. <p...

This heat exchanger which allows your dishwasher to be filled with water. If it is defective your dishwasher will not fill correctly, will not operate optimally and will indicate a fault code.