I purchased a JIN YON 3 speed 4 wire chain switch part number E70469 through All Electronics and connected the L,1,2,3 to the same positions and it does not work. All I get is one speed. Did they change the configuration of the switch. The old switch has continuity from L to each number every time you pull the chain and then off. The new one does not work that way. Sometimes there are 2 numbers on and never found a off. Can anyone explain.