I already replaced the resistor pack once. I went to Napa and bought a replacement. It burnt out in 3 days. The green insulating material actually chipped off and the wire melted through. The thermal fuse, however, never blew. It looks like the Napa part is garbage. So I figured I would spend $1.50 to replace the thermal fuse on the original part. The Dodge OEM resistor pack is much more robust. If it blows out again, I’m going to figure that the motor is drawing too much current and needs to be replaced. But the whole scenario was initially cause by mice so I am hoping that with them gone, things will work fine.