They also make non-HF unit:
https://www.amazon.com/TOOLIOM-Machi...dp/B09HZYV9J3/
Is this what you have?
In which case there's only 2 connections on torche, power and gas. Button on handle isn't switch, it's twist valve that just turns on/off gas flow.
It's possible you got non-HF torche with your HF unit. It would still work with scratch-start and can still reverse polarity.
Post photos of what you have!