Confirm the machine is responding to the trigger.
Fault route
MIG200DL No Wire Feed Diagnostic
A wire-feed diagnostic path for MIG200DL welders, separating command, power-board output and feeder motor evidence.
Quick Answer
For MIG200DL no-wire-feed after torch operation, check the current potentiometer, power-board P14 motor-output voltage and feeder motor/wiring before replacing the complete control section.
- Power-board P14 should provide a DC2-22V style output for the feeder path.
- An open current potentiometer can prevent the expected feeder command.
- If P14 voltage exists, inspect the wire feeder wiring or motor itself.
Use this page when
- Pressing the torch creates a normal welding response but the wire does not feed.
- You need to decide between potentiometer, power board and feeder motor/wiring.
- The machine is not completely dead.
Do not use this page when
- The torch switch has no response at all.
- The wire feeds continuously at power-on.
- Only shielding gas is missing.
MIG200DL no-wire-feed route
Command, power-board output and feeder hardware evidence.
Open or bad potentiometer can block feeder command behavior.
Check DC2-22V output on P14 feeder-related lines.
If voltage exists, inspect feeder harness and connector path.
Replace or repair motor only after board-side output is confirmed.
Measurement / evidence table
| Evidence point | Expected / abnormal evidence | Repair direction |
|---|---|---|
| Current potentiometer | Open potentiometer is a listed no-wire-feed cause. | Replace potentiometer if open or unstable. |
| Power board P14 | P14 lines 1#-2# and 3#-4# should have DC2-22V output behavior. | If missing, inspect power board. |
| Feeder harness | Wire-feeder connection can be open or loose. | Repair harness or connector. |
| Wire-feed motor | If correct voltage exists but motor does not move. | Repair or replace wire-feed motor. |
| Contact tip / wire match | For unstable feed/current, wire and contact tip should match size. | Correct consumable mismatch before board repair. |