Follow suggestions in my first post and you will figure it out fast. What do you mean the switches will work then stop? Do you mean the motors will work then stop or what? Maybe you can't explain things very well but you have to go slowly so we can understand what you have exactly. If you have at least 4 motors, do you have 4 switches? Where is the "main plug"? before the switches or after? I suppose the wires (4?)come out of the main plug or out of the switches and go to each motor plug? Pull the main apart and tell me how many contacts there are, then test each input contact, with it apart, and see if they are hot when each switch is operated. If they are, proceed to each motor plug, pull apart and see if the input side is hot when switch is operated. Do that to all four. Don't forget the grounds I mentioned, that is very, very important. You must run thru all these tests and report back. You can start from the motor plugs and test backwards if you want. If all four motors do not work it is a "common" problem, like ground or main plug or Voltage supply to switches or fuse, etc.