I got a Polder dual-probe thermometer for Christmas. I've only used once or twice, and now it seems like I killed it already. One for one smoke, I had the probe inserted into a potato, and the cover of my WSM rested on the cable. Could this have damaged the probe? Was this the incorrect way to use it? I'm doing ribs now, and it keeps reading "LL" unless I play with the cable. Any advice or info is welcome.