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When switching from flux core wire to regular wire with shielding gas on my welder it calls to reverse the polarity of the electricity to the welding gun. You have to open it up and swap two wires around. It always cracks me up inside when I’m telling people I had to reverse the polarity of the welder to get a better weld.
The popping sound is a feature, not a bug. How else can you tell if your toast is ready when you’re doing something else when getting ready in the morning?