Select any prog and it pumps then fills as normal. Then as soon as the wash motor cuts in it pumps out, fills again & repeats until switched off. Initially the indicator light went from the selected prog to 4 (prewash) but not flashing. Running it again after checking components & connections I had the same scenario exept the indicator light went out instead of going to prewash. I`m thinking new pcb or have I missed something?