I agree that you have fallen victim of the "you get what you pay for", and HF is notorious for this. I love to buy stuff there, but you need to know that it's for limited use.
I'm not sure if 4-hours is exceeding that "limited use" category.:B
I wonder if it's like many welders, where there is a service/use rate that should be followed....only welding for say 20 minutes, then letting it rest for 40 minutes in any given hour.
Keep in mind, these are cheap and small pieces of machinery, which are built cheaply, with cheap parts, and cheap labor............did I say cheap enough:B
They may be mass produced, but they still have people putting them together, and not everyone is going to do the same quality of work.
Still, you gotta give creds to the HF for continuing to replace the defective units, and to the OP, for continuing to keep trying.
