I just finished up my OAV 4 x 5 treatment and since the weather was still good, went to do another round and the Varrox wand apparently died. The first hive went off, saw the smoke but I had a pile of crystals of the screen. The second hive, nothing happened-dead. The battery was charged to 100% just before using it and it was only two shots. I hooked it up to my Land Rover and it didn't even get warm. It's a couple months old and this round of treatment was the first use. Is it dead dead or am I doing something wrong? Anyway to repair or can I return it (Blue Sky)?