Power, gas, air, or fuel conditions to normalize before diagnosis:
Expected observations and field measurements
Readings or observations that should be verified first:
What the technician should see, hear, or measure if the machine is healthy:
What findings move the diagnosis away from the machine and into the accessory or utility path:
What load, material, or operating condition should be used when proving the machine after repair:
Expected voltage, connector, and signal checkpoints
Use this section when the source material supports concrete internal checkpoints such as:
connector names or board test points
expected bus voltage, auxiliary voltage, or signal state
process-state or panel-state checkpoints that reliably separate setup from hardware
model-specific switch, jumper, or reset behavior tied to diagnosis
Checkpoint
Healthy expectation
Diagnostic meaning if abnormal
Fast triage
Symptom
Most likely causes
First checks
No power
Wire or arc problem
Gas-flow problem
Thermal/fault shutdown
Failure patterns and repair logic
1. No power / dead machine
2. Powers up but no welding output
3. Feed, arc-start, or cut-start problem
4. Poor arc quality / unstable output
5. Gas, air, or consumable related faults
6. Intermittent or heat-related behavior
Fault-code and control-panel clues
Fault codes, LEDs, or UI states that matter on this model:
What those indicators often mean in practice:
What should be ruled out before trusting the code as an internal failure:
Model-specific notes
Repair actions and post-repair verification
Repair actions that are field-appropriate on this model:
Confirmation test after correction:
Signs the repair is incomplete or the fault is still upstream/downstream of the machine:
Service parts and wear points
Consumables most often mistaken for machine failure:
Cables, torches, guns, or feeders to inspect first:
Installation or utility-side conditions that commonly mimic failure:
Parts, wear-item, and accessory map
Use this section when the source set supports a more explicit repair map than simple wear-point bullets.
Include official part numbers, official kit numbers, or the official parts-page entry path when the source set supports them.
Item or assembly
Where it affects diagnosis
Why technicians should check it early
Diagram, board, and connector callouts
Name the local diagram, schematic, photo, parts breakdown, or workbook tab that is most useful.
State what each file helps identify so a technician can move from symptom to the correct board, connector, or assembly faster.
If the official manual exposes named sections such as Troubleshooting & Service, Electrical Principle Drawing, Wire Feeding Layout, or Torch Part Breakdown, name those sections explicitly.
Symptom-to-reference lookup
When official demo videos, review videos, or support clips exist, name the exact complaint-relevant video topic instead of linking only to a generic video hub.
Use this when a model has enough local manuals, schematics, workbook tabs, or parts breakdowns that the technician would benefit from a direct “open this first” map.
Symptom or complaint
First reference to open
Why that reference is the best starting point
Serial, generation, and package applicability
Serial range, revision, or package notes that change diagnosis:
Accessory ecosystem or package assumptions that matter:
Any known documentation-strength or evidence limits: