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Complete Parts List is available at www.MillerWelds.com
7-4. Error Messages
Message Error Remedy
Overtemp-Please wait while the weld-
er cools down.
Internal temperature of welder has exceeded the
maximum limit.
Wait for unit to cool down. If the fan is not run-
ning, contact Miller Electric Mfg. service dept.
Shorted trigger-Release 4-pin trigger
to clear error.
MIG gun or spool gun trigger is engaged on
power up.
Release 4-pin trigger to clear error.
MIG gun trigger is held during jog for more than
16 feet of wire.
Spool gun trigger is held during jog for more than
10 seconds.
MIG gun or spool gun trigger is engaged for
more than 1 second after the arc is broken.
After an overtemp error, the MIG or spool gun
trigger is held after the unit has completed
cooling.
MIG gun or spool gun trigger is engaged while
the process is changed to Flux Core or MIG
process.
MIG gun or spool gun trigger lead voltage ex-
ceeds 9 volts caused by the electrode being
shorted to the trigger lead.
Fix or replace damaged gun.
MIG gun or spool gun trigger leads are shorted
together.
Shorted trigger-Release trigger to
clear error.
The 14-pin trigger is engaged on power up. Release the 14-pin trigger.
The 14-pin trigger is held during TIG preflow for
more than 15 seconds.
Shorted output-First remove short,
then pull trigger to clear error.
The welding wire came into contact with the
workpiece while jogging wire.
Remove short and pull trigger, or wait 30 sec-
onds to clear error.
MIG gun or spool gun contact tip came into con-
tact with the workpiece while welding.
The weld voltage is less than 10 volts for more
than 0.2 seconds while welding.
Output rectifier is damaged. Contact Miller Electric Mfg. LLC service
department
The secondary control board is damaged.
The primary control board is damaged.
Stuck electrode-Free stuck electrode
to clear error.
Stick welding electrode has become stuck in
weld puddle and turned output off.
Remove Stick welding electrode from workpiece
and output will turn back on after one second.
Stuck electrode-Free tungsten to clear
error.
Tungsten electrode has become stuck in weld
puddle and turned output off.
Remove the tungsten from workpiece and output
will turn back on after one second.
Motor error-Motor has drawn too much
current.
Too much pressure on pressure adjust knob. Reduce pressure on the pressure adjust knob.
The gun liner is obstructed. Clear obstruction or replace gun liner.
The gun contact tip is obstructed. Clear obstruction or replace contact tip.
The welding wire is entangled. Untangle welding wire.
The internal motor is damaged. Contact Miller Electric Mfg. LLC service dept.
The primary control board is damaged. Contact Miller Electric Mfg. LLC service dept.
The spool gun motor is damaged. Fix or replace damaged gun.
Fan error-The fan is running too slow
or is damaged.
The fan blades are obstructed. Clear obstruction from fan.
The fan wiring harness is disconnected. Contact Miller Electric Mfg. LLC service
department
The fan is damaged.
The primary control board is damaged.
Thermal error-Primary thermistor
range error.
The primary circuit thermistor is unplugged. Contact Miller Electric Mfg. LLC service
department
The primary circuit thermistor is reading too high
or too low for a valid temperature.
The primary control board is damaged.
Thermal error-Secondary thermistor
range error.
The secondary circuit thermistor is unplugged. Contact Miller Electric Mfg. LLC service
department
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