Lincoln Electric DC-650 PRO IM463-A - Manual (Page 23)

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TROUBLE
M. Poor arc characteristics in
GMAW mode.
N. Ammeter displays “ Err ” and
Voltmeter displays a number
CAUSE
1. Capacitor bank not switching in.
2. Capacitor(s) in output circuit failed. A failure
is indicated if the small vent plug on top of a
capacitor is raised or blown out.
1. An error has been detected.
WHAT TO DO
1. Check the Mode SCR (SCR7). Should be on
when in GMAW and FCAW modes.
2. Replace entire bank of capacitors. Do not
replace individual capacitors.
WARNING: The liquid electrolyte in these
capacitors is toxic. Avoid contact with any
portion of your body. Clean up vented
electrolyte using rubber gloves and a water
dampened cloth. Remove any electrolyte
which gets on skin using soap and water.
1. See Error code Troubleshooting Guide.
TROUBLESHOOTING
TROUBLE
A. Output Control not functioning
on Remote Control.
B. Output Control not functioning
on the machine.
CAUSE
1. Output Control switch in wrong
position.
2. Faulty Output Control switch.
3. Faulty Remote Control
potentiometer.
4. Leads or connections open in
control circuit.
5. Faulty Control P.C. Board.
1. Output Control switch in the
wrong position.
2. Faulty Output Control switch.
3. Faulty Output Control
potentiometer.
WHAT TO DO
1. Place switch in “ Remote ” .
2. Check & replace if found faulty.
3. Check & replace if found faulty.
4. Check all leads & connections.
5. See P.C. Board
Troubleshooting Procedure.
1. Place switch in “ Local ” position.
2. Check & replace if found faulty.
3. Check & replace if found faulty.
ACCESSORY TROUBLESHOOTING
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
CAUTION