CONCERN: Customer states washer does not start error F03 E03. Customer also stated that mask was stuck in drain pump was not able to removed. DIAGNOSTIC AND CAUSE: checked drain pump l, no obstruction found. Checked water level hose, passed. Tested water pressure switch 5 DC voltage to switch from main control board. Found water pressure switch failed. CORRECTION: Replaced water pressure switch. Removed drain pump housing and removed pieces of mask. Reassembled and tested in all cycles, operation now normal. No leaks upon completion.