I came to the point where the first DCC, I have been using on my tank and PP10440 for a little over a month, was getting a burnt taste. So I changed out the DCC on my tank, filled up the tank, and it didn't fire. So I pulled out another DCC and tested it on the battery without the tank. It made vapor, so I put it on my tank and filled the tank. It worked for about 30 min, then stopped hitting. I changed the battery and nothing. So I switched out the DCC 2 more times and neither of them worked. So here I am with 4 new DCC's and my setup isn't working. The batteries are charged and only a month old. I dropped my setup a few days ago from a few feet, but it worked fine when I picked it up. I am stumped, as I can't find any reason my setup isn't working. Any ideas? 