Product review (1 stars): Recently purchased this for our 1 year old Samsung. ...
Recently purchased this for our 1 year old Samsung.  it was the 2nd filter we replaced.  (the first one was replaced by a plumber).  Contrary to other reports; you must turn the water off.  We did not and it leaked gallons of water.  We turned the water off and it leaked for another 6 hours.  When it was completely dry; we turned the water on and no water!  Finally had to call a repairman ($80 thank you very much).  He said the filter was installed improperly.  We don't understand that.  There was only one way to install; one way to lock it.  Needless to say; we will ignore the change filter light in the future.  The instructions were very vague.  Amazon is not at fault here; but Samsung is.