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Miller Multimatic 255 - Error Messages

Miller Multimatic 255
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OM-278174 Page 58
F
Complete Parts List is available at www.MillerWelds.com
7-5. Error Messages
Message Error Remedy
Overtemp-Please wait while the weld-
er cools down.
Boost Module* Inverter Module * Out-
put Rectifier * Secondary Magnetics
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 authorized service
location.
Trigger error-Release MIG gun trigger
to clear error.
MIG gun trigger is engaged on power up. Release 4-pin trigger to clear error.
MIG gun trigger is held during jog for more than
17 feet of wire.
MIG gun trigger is engaged for more than 1 sec-
ond after the arc is broken.
After an overtemp error, the MIG gun trigger is
held after the welder has completed cooling.
MIG gun trigger is engaged while another proc-
ess is selected.
MIG gun trigger leads are shorted together. Fix or replace damaged gun.
Trigger Error-Release Spool Gun trig-
ger/Release Push-Pull trigger.
The 10-pin trigger is engaged on power up. Release the 10-pin trigger to clear error.
Trigger held too long during jog mode. Spool gun
for more than 10 seconds. Push-pull gun for
more than 37 feet of wire.
Trigger is engaged for more than 1 second after
the arc is broken.
After an overtemp error, the trigger is held after
the welder has completed cooling.
Trigger is engaged while another process is
selected.
The trigger leads are shorted.
Foot Pedal Error
Release TIG Foot Pedal
The TIG trigger is engaged on power up. Release the TIG trigger.
The TIG trigger is engaged while the process is
changed to TIG Lift-Arc Remote.
Gun Error XR-A Python S XR Edge S
XR A S XR-A AlumaPro Plus
System parameters do not support this
equipment.
Replace with compatible MIG gun.
Gun Error
Remove MIG gun
Remove spool gun
Remove push-pull gun
Wire drive assembly cable connected in TIG or
Stick process.
Disconnect wire drive assembly cable.
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 authorized service
location.
The control board is damaged.
Motor or Motor Tach error-Motor has
drawn too much current.
* Internal motor has stalled * Internal
motor has drawn too much current *
Remote motor has stalled * Motor tach
is running too slow or is damaged.
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 control board is damaged. Contact Miller Electric authorized service
location.
Fan error-Either the top fan or the bot-
tom 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 authorized service
location.
The fan is damaged.

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