We had the error code FP, on our Whirlpool Awm 6125/3, so after reading some of the fixes on here, I pulled the front filter, with lots of force, as it wouldnt come out, and the filter, had hairgrips, tree pine needles, a metal nail, hair and debree, and smelt like drains.....I pulled it all out with a pair of tweezers, and washed it, put it back, and it worked!!!!!!
Fantastic thanks, saved us from buying a new washing machine.....
Julie and Tim, July 2013