Hi all,
Over the weekend, I plugged it into a different outlet on a different circuit, and the GFCI tripped. So, I'm pretty sure it's something with the smoker.
Next, I inspected the chord, and removed the back panel. I didn't see anything to indicate there was any moisture in the back - all the insulation was dry, wires appeared fine, etc.
At that point, I figured it was likely the heating element, so I removed it, and ordered a replacement. I thought about putting in the oven as suggested, but figured for $26, I might as well just replace it and hope for the best.
Thanks for your help,
George