I have a 1hp pool pump that was tripping the breaker so I opened up the cap and there was a bunch of white ashy crud inside. I brushed out the crud and with the cap off, turned the breaker back on. When I threw the switch, the pump fired right up but there was arcing at the blue wire where it connects to a plastic block with white and yellow wired attached. In the photo you can see where it burned itself off. I also see the burn mark inside the cap and that looks like the same area. For what itís worth, the ground wire didnít seem very well attached when I removed the power cord.
Any help or advice is appreciated. I can solder if that part is cooked.