Dear Patty,
The problem is most probably a '''Air Trap Pipe Blockage,''' It can also be clogged with soap suds and leaking moisture, causing error code '''F03 E01'''. When clogged, the nozzle captures air incorrectly, wherefore it presses on the pressure switch. As a result, it determines the wrong amount of water in the tank, which sends a signal to the main control board.
Hope this helps![br]