I replaced my SWG a couple years ago due what you see in the picture (burnt/corroded plug). I also had to get the connector replaced on the board. All is working well but when I removed my SWG for winter in December, put the old one in place but not plugged in, I noticed the plug on my newer unit is showing signs of corrosion on the same area (see pic) as the old unit. Any suggestions on how to address this? Would putting a good coating of GB's Ox-Gard Anti-Oxidant Compound on the connector and plug when I reinstall it? Appreciate the help.