Job Packet / WeldKing / CoolTIG220

Packet use

Use this packet when the complaint involves no TIG start, gas instability, wrong version assumptions, remote mismatch, or TIG dead while stick still works.
Primary guide: CoolTIG220 guide
Bench sheet: CoolTIG220 bench test
Brand references: WeldKing local reference manifest, WeldKing fault-branch matrix

Intake snapshot

Item	Record
Serial or shop tag
Exact complaint
HF or no-HF version as found
Torch-switch, remote, or pedal branch in use
Gas setup and flow state
DC TIG baseline behavior on arrival

Likely parts and accessories to stage

Item	Why stage it early
Known-good TIG torch and tungsten	fastest way to remove torch-side false faults
Known-good gas regulator and hose path	gas instability is still a dominant false-fault branch
Known-good pedal or switch branch only if required	avoids mixing external-control faults into the base-machine test
Meter for simple state checks	needed when the complaint is subtle rather than total failure

Official parts-entry shortcuts

Use these after the diagnosis proves the fault follows the torch, gas, or control-accessory branch.
Broad parts path: official CoolTIG220 parts category
PRO17 TIG torch WAT31100: official product page
FC25-HD foot pedal 07002510: official product page

First branch decisions

If you see...	Stay in this branch first
No TIG start with basic setup incomplete	torch, gas, and version branch
DC TIG healthy but pulse or optional control fails	setup or control-accessory branch
Stick healthy but TIG dead	TIG-only branch
Complaint follows one remote or switch branch	control-accessory branch
HF assumption does not match the fitted unit	version and local-note branch

Local files to open first

the HF fault-note document in assets/reference_doc/WeldKing/CoolTIG220
assets/reference_doc/WeldKing/CoolTIG220/220V_VERSION_NO_HF.docx
the electrical-drawing image in assets/reference_doc/WeldKing/CoolTIG220
workbook sheet CoolTIG220 in assets/reference_doc/all_models/troubleshoot_notes.xlsx

Bench workflow

Normalize gas path, fitted version assumptions, and the intended control branch.
Run CoolTIG220 bench test.
Prove simple DC TIG first.
Add pulse or stick proving only after the base machine is clearly healthy.

Release signoff

Check	Result
DC TIG baseline restored	pass / fail
Version path and control branch match the fitted unit	pass / fail
Pulse or stick branch restored if required	pass / fail
Gas path stable and no wrong-version confusion remains	pass / fail
Covers, grounds, and lead routing restored	pass / fail

Technician: __________ Date: __________