There's 3 pins that connect to that plug. The center pin is the weak point, as that's where almost all failures reported at TFP. There's corrosion on the pins and the plug. Do not do any work on the Jandy equipment, as that will likely void the warranty. Contact your pool builder, as that should still be under warranty if you're under 3 years of service. You'll want them to replace the cord AND the cell.
Is it still making Chlorine?
Also, do you have the mineral cartridge installed on the right side of the vessel? As you can see from the picture, there's dripping evidence of the minerals leaking out. You DO NOT want that cartridge installed. There's articles on this site that state that the mineral cartridge can stain the plaster. I never installed mine. I had the original plug that covered the top, so the unit could work without the cartridge. There's a hack available here as well if you don't have the plug that you can use to remove the minerals and still use the empty cartridge.
