Product review (4 stars): Have to get new, not refurbished to fix F1 washer problem.
It fixed the problem of my whirlpool washing machine when it kept stopping and flashing F1.  Only 4 stars due to the price.  But here's a tip:  I first bought a refurbished one for less than half the price but it didn't fix the problem so I had to return it and get this brand new one.