7-3. Troubleshooting

 

Y Disconnect power before troubleshooting

Trouble

Remedy

Wire feeds, shielding gas flows, but

Check and secure weld cable connections (see Section 4-2).

electrode wire is not energized.

 

Electrode wire feeding stops or feeds

Check gun trigger connection. See gun Owner’s Manual.

erratically during welding.

Check gun trigger. See gun Owner’s Manual.

 

 

Readjust hub tension and drive roll pressure (see Section 4-6).

 

Change to correct size drive roll (see Table 9-1).

 

Clean or replace dirty or worn drive roll.

 

Incorrect size or worn wire guides.

 

Replace contact tip or liner. See gun Owner’s Manual.

 

Remove weld spatter or foreign matter from around nozzle opening.

 

Have Factory Authorized Service Agency check drive motor or motor control board PC1.

Motor runs slowly.

Check for correct input voltage.

Wire feeder power is on, displays light

Check welding gun trigger leads for continuity, and repair leads or replace gun.

up, but unit is inoperative.

 

OM-211 076 Page 28

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Miller Electric Axcess manual Troubleshooting, Disconnect power before troubleshooting, Trouble Remedy