This is a hard part to find and expensive. The website says this part is compatible with my model fridge but it is not. Notice in the pictures that there is a notch on either side of the one on the right (original...notice rust as well, it's why I ordered new part). Anyway, those notches are needed so that the sensor "sees the other side" which is on/off switch, much like your garage doors safety sensors work. The new part, on the left, doesn't have these notches. Took me the better part of two days trying to figure this out thinking it was my new water filter I installed, or something more sinister! Will be returning..