Butt Welding Aluminum Pipes

[Rugar]

Here are some pictures of the gas fitting on the case. To me it looks like the black rubber hose is held on with a metal crimp to keep the line from blowing off. Hope these pics work for you. If not let me know and I can try to get different ones.

Perfect! Thanks for taking the time to take the photos and post them for me.

I hope you have found your problem. You will know right away when AC kicks in for sure.