Miller Auto-Continuum Drive CE - Troubleshooting

OM-273476 Page 24
6-2. Troubleshooting
Trouble Remedy
Wire feeds, shielding gas flows, but
electrode wire is not energized.
Check and secure weld cable connections (see Section 5-3).
Electrode wire feeding stops or feeds
erratically during welding.
Check welding gun trigger and connection. See gun Owner’s Manual.
Change to correct size drive roll.
Clean or replace dirty or worn drive roll.
Incorrect size or worn wire guides.
Replace contact tip or liner. See welding gun Owner’s Manual.
Remove weld spatter or foreign matter from around nozzle opening.
Wire feeder power is on, displays light
up, but unit is inoperative.
Check welding gun trigger connection at wire feeder.
Check welding gun trigger leads and trigger switch. See welding gun Owner’s Manual.
Unit completely inoperative. Check ArcConnect cable connection at wire feeder and power source.
Wire feeds when Jog switch is
pressed but not when gun trigger is
pressed.
Check welding gun trigger connection at wire feeder. Check gun trigger leads and trigger switch. See
gun Owner’s Manual.
Gas does not flow; wire feeds. Check gas flowmeter and gas supply.
Check gas hose for damage or loose connections.
Check for blockage in welding gun.
Erratic or improper weld output. Use proper size and type of weld cable.
Clean and tighten all weld connections.
Check for correct polarity or welding circuit.
If using weld voltage sense lead, verify cable and connections. Repair or replace as needed.
F
Do not leave unused lead connected to the weld voltage sense terminal.