I have had nothing but one thing after another with my heat system. First off I could not get any regulated heat. So I replaced the duel heat regulator used at a cost of $125. Still a problem. I could get heat on one side and cold on the other. Then the gates would not work . I thought one was busted so I removed the whole dash assy. Tested each gate with a hot wire and ground. They all worked. And the doors all work. Meanwhile I have a clutter of wires and parts that have discouraged me greatly. I have been a dodge guy up till now. It seems dodge built a heat system that has not been improved since the stone ages and now the customer is paying for their mistakes. Shame on you Dodge! I hang my head now because my son owns a Chev pickup and keeps saying Chev, Chev, Chev. What can I say. Well I can at least say Cummins, Cummins Cummins.