[Bryansglaser]

Hi everyone, i am totally new to this forum (this is my first post) so please give guidance as to where the appropriate section or if I am asking a stupid question.

I have had a 80W china laser for about 3 months. Today I was cutting some wood and my laser stopped working. I checked the tube and to my horror, the wire melted. I've attach a photo here.

My laser machine has water cooling and air assist attached. But based on the situation, i have reason to believe the water pump is not working well? Since the wire melted, i assume it was due to overheating.

My questions are now:

1) Do i have to change the whole C02 tube? How do I test if my tube is still working?

2) How do I determine if the pump is the issue?

3) How do I change the tube/wire given the image attached? Can I just cut the wires and replace it with another wire or do I have to replace the entire tube + wire.

I'm sorry if this has been asked many times and I seek all your expert opinions.

Thank you!

Bryan