Washer does not fill with water properly. I have calibrated the water level and transducer and ran diiagnostics on the valves. There is plenty of water pressure. The "add a garment" light stays lit while the "wash" light is on also. The water stops filling and the machine stops, flashing a "code 51. this is the RPS sensor defective code. I replaced the sensor and the harness and it still does the same thing. If the tub does not get enough water in it, it seems to be sending the wrong code and the agitator won't turn. GOT ANY IDEAS?