Troubleshooting steps
Check torch, replace consumables, verify gas flow
Welding Equipment Codes
E04 – Arc Start Error
Arc start failure
Details
The plasma arc failed to start.
Error typeerror
MeaningArc start failure
Typical causesTorch issue, consumables worn, gas flow problem
SolutionsCheck torch, replace consumables, verify gas flow
Severitymedium
Catalog references
Where this appears
HyperthermE04
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FAQ
Common questions
Why won't arc start?
Common causes: worn consumables, insufficient gas flow, torch connection issues.
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