Torch height to high

Th newest problem in a long list of problems is that the torch starts cutting at the correct height then creeps up on longer cuts leaving poor cut quality.

Sorry to hear about the issues you’re having.

Sounds like something is going wrong with the THC settings. Have you contacted support yet? Unless we have an experienced plasma user here I think support may be your fastest way to a good answer.

Check the electrical grounding in your shop.