Whether knower disappears automatically after doer disappeared? Did   meditation; when concentration  on the  breath at the tip of the  nose  suddenly  controller has disappeared and cittarupa came without  control.Is it a stage  that knower  and doer disappeared?after the experience  feel like no self at that time.
Did meditation; when concentration on the breath at the tip of the nose suddenly controller has disappeared and cittarupa came without
  control.


Cittarupa always functions by itself. The idea of a "controller" is an illusion created by delusion, ignorance, clinging &amp; craving. 


  Is it a stage that knower and doer disappeared? after the experience feel like no self at that time.


Yes. When the sense of knower &amp; doer disappear, this is insight into anatta (not-self) of the five aggregates. The five aggregates operate on their own, without a self controlling them.