The connection end where the carto goes started to get really loose and now will not fire at all. The warranty is gone so trying to figure out how to take it apart to check the wires to see if came loose. Has anyone ever took one apart or is there anyone that works on them that I can send it to for repair or should I contact the vendor for help? The vendor I purchased it from no longer has it on there site so I'm assuming they no longer sell it. Any ideas on either will be much apprecitated.