This is a part 2 of my efforts to fix my Whirlpool Washer and the dreaded F21 error code http://www.chromiloamin.com/2014/09/how-to-fix-error-code-f21-water-not.html . This code means there is a slow drain issue with the unit and that it could easily be fixed by emptying the contents of the lint trap or replace the motor. I have already removed all the contents of the lint trap (which had a lot of gunk buildup) but the F21 error continued to persist so I thought that the next logical thing to do is to replace the drain pump motor. Maybe the lint trap buildup just caused the motor to malfuntion. The water pump part number 8540024 was replaced by part# W10130913 and I was able to source it cheaply from Walmart US for US$70. I could have purchased it from ReliableParts and have it shipped to the store which is close to my house but that would have set me back $173. I ordered thru Walmart US and had it shipped to my mailbox at Blaine via 5dPackages (they only charge $2 for packages un...