Bosch Avantixx 8 WAQ 24461 en / 01 the key flashes, it does not react to anything. When I set it for a quick wash, the key stops flashing, but holding the start does not react either. I think the electronics have died, but Bosch's service refused to say which module to replace, and there are two control panels and electronics. I am asking for a hint, maybe it can be repaired without replacing the entire module.