optional kits should not distract from plain-steel MIG baseline proof
startup collapse and maxed display belong in support-power and feedback logic first
feed-path setup still has to be bounded before electronics work
Failing Moves
opening the machine before plain-steel MIG baseline is proven
blaming the display alone while ignoring feed behavior
letting optional aluminum or TIG kits confuse the root complaint
Passing Answer Summary
A correct answer starts with stripped-down base MIG, uses the measurement card to separate support-power and feedback behavior, and only opens the unit if feed hardware and process state are already clean.