[Xdevo1973]

Thanks for the information. I ordered some diodes. I also did something rather unorthodox and "fixed" the intermittent diode. I heated the negative end for about a minute with a soldering iron. I then tested it with a multimeter and it works consistently-even after I placed the diode in the freezer. I'm not sure how long that will hold up however, so I'll replace it with a new one once they arrive.