Jose F Naples , FL April 10, 2015 Appliance: Whirlpool Washer WTW6600SW1 Whirlpool Washer Wtw6600sw1: Was giving me error code f 51 after washing it would not spin and start beeping !. How to replace Rotor Position Sensor Kit. Called Appliance Parts Pro help number and asked if they could help me with the error code F-51 on my Whirlpool Cabrio Washer and they checked and told me that it could be the Rotor Position sensor . I ordered the part . Also asked if they had a video on installing the part and was told to Google the part # and it was a very helpful video . It took about 1 hour to remove the old part and replaced it with the new part . It worked and cleared the error code and fixed the problem . I hope this will Help if your washer gives you this error code F-51. 16 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours