Hi SnowlakeMike.
I am not an electrician under any circumstance! Several years ago my seven pin connector was not working properly and I was afraid to pull Revilo to an RV dealer to get it fixed with lights not working properly. I asked many questions and then bought a new plug. I took pictures and carefully noted how it was hooked up. So far so good. I disconnected the faulty plug and installed the new plug according to my notes. Again, so far so good. Until I tested the turn lights, etc. Hmmmmm. And the lights worked. But the right turn light turned on the left turn light and the left turn light turned on the right turn light. I knew I had hooked up the new plug exactly like my notes said. But what I didn't know to ask was the direction of the plug when hooking up the wires again. I asked more questions and discovered that I had hooked the wires in the opposite direction. After making several changes to the wiring on the new plug, I succeeded in getting the wires connected correctly and finally, all lights worked. I tell you this because, as I stated previously, I am no electrician but I managed through trial and error to change the 7 pin plug by myself. It works perfectly now. Since I gained a little bit of confidence from this adventure, I decided to tackle the problem of the electric jack no longer working. After a few calls to the manufacturer to try and determine if I needed a new expensive electric jack, the most helpful person told me how to change the part in the top part of jack. It was about $25 as opposed to $450??? Anyway, long story to tell you that YOU CAN DO IT by yourself (change the 7 pin plug) if you so choose. Good Luck!