Bench Test / WeldKing / MigSonic145

Test intent

Separate capacitor-board or low-voltage-support faults from gun, motor, and gas-side complaints.
Confirm stable feed control, no click-cycling, and a healthy base MIG baseline after repair.
Prove whether the complaint follows the base gun, spool-gun option, or gas-side setup.

Check	Expected condition	Result
Gun, liner, and tip baseline	clean and matched to wire size	pass / fail
Drive system and spool drag	smooth feed with tip removed	pass / fail
Regulator and gas hose if fitted	no obvious leak or crushed hose	pass / fail
Input branch and extension path	stable source with no overheated plug	pass / fail

Checkpoint	Expected value or behavior	Record actual
Power-up behavior	no click-on and click-off cycling
Feeder motor at idle	stopped until trigger command
Wire-speed response	changes cleanly with control movement
Gas-side branch if used	stable flow and no shielding collapse under live weld

Test	Pass condition	Result
Stable startup	no cycling and no instant loss of support power	pass / fail
Trigger feed	feed starts on command and tracks speed change	pass / fail
Short MIG weld	stable weld with normal arc and gas coverage	pass / fail
Warm restart	no return of click-cycling or full-speed feed	pass / fail
Spool-gun branch if required	clearly isolated from base-gun behavior	pass / fail

Clicks on and off: stay in capacitor-board or support-power branch.
Full-speed feed with no speed control: stay in control PCB branch.
Base gun bad but spool gun not involved: stay in gun, liner, and gas-side branch first.
Gas-shielded complaint disappears with a known-good regulator or hose: stop before internal repair.
Base gun healthy but spool gun bad: keep the complaint isolated to the spool-gun branch instead of treating it like a shared machine fault.

Use these only after the complaint has already been proven to follow an external gun, spool-gun, or gas-side branch.
MigSonic145 parts category: official MigSonic145 parts path
NT-1 MIG gun 07000422: official product page
SpoolKing-200 spool gun 07NS2000: official product page
Gas-side branch 07000510 and 072611120: official category page

Signoff item	Result
Stable startup restored	pass / fail
Base MIG baseline restored	pass / fail
Wire-speed control restored and feeder stays idle until trigger	pass / fail
No click-cycling or full-speed feed after power cycle	pass / fail
Gas-side baseline restored if required	pass / fail

Technician: __________ Date: __________ Serial or shop tag: __________