Section E

Troubleshooting

Trouble

Cause

Remedy

No wire feed at gun,

115/42 VAC Control fuse in

Replace fuse.

feeder/Control box blown.

 

feeder not operating,

Micro-switch defective/not

Replace switch. Check

i.e. no slave motor

being activated.

switch for operation.

or brake solenoid.

Broken electrical cable.

Check micro-switch

 

 

wires for continuity.

 

24 VAC Control fuse in

Check motor leads for

 

feeder/Control box blown.

shorts; then replace

 

 

fuse.

 

Bad potentiometer.

Check potentiometer

 

with meter.

No wire feed at gun,

 

 

Check motor and

feeder operating

 

Broken Electrical Cable.

potentiometer wires for

properly.

 

continuity.

 

 

 

 

See specific cabinet/

 

Bad Speed control/PCB

control box owners

 

manual for speed

 

 

 

 

control operation.

 

Loose or no cable

Check all power

 

connections.

connections.

Wire feeds, but

 

Check power supply

 

owners manual for

welding wire is not

Contactor control cable

location and type

energized.

loose or in wrong position.

of contactor signal

 

 

 

 

required.

 

Welding power source.

Check power source.

 

Dirty or worn conduit.

Blow out or replace

 

conduit.

 

 

Wire feeds

Wrong size contact tip.

See Contact tip table.

erratically.

 

Check for lock washer

 

Idler roll stuck.

under idler roll, or

 

 

replace if damaged.

 

Bad potentiometer.

Check with meter.

 

 

Check potentiometer

 

Broken electrical cable.

wires for continuity or

Wire feeds one

 

short.

speed only.

 

See specific cabinet/

 

Bad speed control.

control owners manual

 

for speed control

 

 

 

 

operation.

Wire walks out of

Idler roll upside-down.

Place groove in idler

roll toward top.

drive rolls.

 

Rear wire guide missing.

Replace wire guide.

 

Python® Lincoln CompatibleOwner's Manual - Page 7

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Python 232-835 owner manual Section E Troubleshooting, Trouble Cause Remedy