The control mechanism stops the pump at certain points during the cycle which allows the 'check ball' inside the pump to change positions which in turn allows one or the other spray arm to be fed with water.Originally Posted by beachbum
It is the water pressure alone that causes the arm to turn. As long as it was getting sufficient pressure it should be turning or it or the part it connects to might be worn and binding, hampering its movement?I tried taking the top tray outside and running water into the funnel. The spray arm sprayed water, but still did not spin.
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