Product review (2 stars): Expect about 2 years of service from this lock before it craps out.
I recommend buying the Square Trade warranty on this product.  I find the lock to last 2 years at the most.  I am now replacing the lock for the 3rd time in 6-7 years of owning the washer.  Price has gone way up since the last I bought this lock here at Amazon.  I found it on ebay for $21 delivered and spent approx $9 on a 3 year square trade warranty.