Product review (4 stars): Fixed no water from dispenser
My water started dispensing very slowly only to stop altogether.  I pushed something up into the dispenser tube in the door and two small pieces of white plastic came out and I got water again for a while until it stopped altogether again a few months later.  The dispenser line was clear and I narrowed it down to the filter assembly.  I think maybe the shutoff valve that is supposed to be disabled by screwing in the filter or cap broke (probably the source of the plastic).  Replacing the filter assembly fixed it and now we have strong water dispensing again.