Won't complete programm.

Won't complete programm: After choosing the washing program and pushing start, the drum fills up with about 2 centimeters of water. Water-inlet stops. LED spinn-cycle flashes for about half a second; then water is being pumped away. Machine says "program end" and unlocks door. No error code is being displayed. What could be the faulty device? Anything else than the processor-board; for instance the 2 or 3-stage pressure-switches? Thanks for your support.