Rotary Nut

I had a couple of problems with my trash compactor, it was present in the home when we bought it. First it wouldn't turn on, the on/off switch was broken so I replaced the switch and knob assembly. Then the unit would run through a cycle and wouldn't stop at the end and would make a loud banging noise. My directional switch was the suspect at first because it was in bad shape to begin with, looked like it had gotten stuck at some point and bent the arm. I replaced the directional switch and it didn't help. Then I realized that the on/off/start panel showed that the start button was stuck in the on position. This was delivering constant current and wouldn't allow the unit to stop. DON'T spend $150 for a new start/on/off panel. I took the panel off and separated the front from the back to expose the buttons from the inside. The start button was stuck so I took the parts out and reassembled them, they're all little plastic and metal pieces that interlink. After I reassembled the buttons' insides I reassembled the panel and reinstalled it. The unit works fine now.