Troubleshooting

Danger Important! Be CERTAIN to shut off the Welder, disconnect it from power, and discharge the torch to ground before adjusting, cleaning, or repairing the unit.

Wire feed motor runs but wire does not feed properly.

Possible Causes and Solutions:

Insufficient wire feed pressure:

Increase wire feed pressure.

Incorrect wire feed roll size: Replace with the proper size.

Damaged torch, cable, or liner assembly:

Have a qualified technician inspect these parts and replace as necessary.

Wire creates a bird’s nest During operation.

Possible Causes and Solutions:

Excess wire feed pressure: Adjust wire feed pressure.

Incorrect contact tip size: Replace with the proper tip for the wire size used.

Gun end not inserted into drive housing properly:

Loosen gun securing bolt and push gun end into housing just enough so that it does not touch wire feed mechanism.

Damaged liner:

Have a qualified technician inspect and repair/replace as necessary.

Welding arc not stable.

Possible Causes and Solutions:

Wire not feeding properly:

See first Troubleshooting section above.

Incorrect contact tip size: Replace with the proper tip for the wire size used.

Incorrect wire feed speed:

Adjust wire feed speed to achieve a more stable arc.

Loose torch cable or ground cable: Check to ensure that all connections are tight.

Damaged torch or loose connection within torch:

Have a qualified technician inspect and repair/replace as necessary.

Welder does not function when switched on

Possible Causes and Solutions:

Tripped thermal protection device: Shut the welder’s switch to off and allow it to cool for at least 20 minutes.

Reduce duration or frequency of welding periods to help reduce wear on the welder.

Refer to Duty Cycle section.

Faulty or improperly connected Switch Body:

Have a technician check and secure/replace Switch Body.

Internal fuse blown:

Have a qualified technician check/ replace.

Weak Arc strength

Possible Cause and Solution:

SKU 97503

For technical questions, please call 1-800-444-3353.

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Harbor Freight Tools 97503 operating instructions Troubleshooting, Wire feed motor runs but wire does not feed properly