Lincoln Electric IDEALARC SP-255 Operator's Manual page 41

Observe Safety Guidelines
detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
The SP-255 stops feeding wire
while welding and the MOTOR
OVERLOADED message appears
on the LCD display.
The voltage and/or wire feed speed
are being changed even though the
gun thumbswitch or front panel
arrow keys are not activated.
The LCD display is not readable
even though the backlighting is
functioning.
Error messages or alarm continu-
ously beeps in bursts of three.
TROUBLESHOOTING
POSSIBLE AREAS OF
MISADJUSTMENT(S)
FUNCTION PROBLEMS
1. Check for any restriction in the
wire feeding path.
2. Make sure the correct size con-
tact tip, gun liner and drive rolls
are being used.
1. The thumbswitch circuit in the
gun and cable assembly may be
faulty. Repair or replace.
1. There may have been an inter-
nal system "fault". Turn input
power off for a few seconds.
Turn power back on and check
for proper machine operation.
2. Check the input voltage. Make
sure the input voltage matches
the nameplate rating and the
reconnect panel configuration.
1. There may be an error in the
system or the keypad entry. See
Explanation of Prompting and
Error Messages in the Operation
section.
TROUBLESHOOTING GUIDE
RECOMMENDED
COURSE OF ACTION
If all recommended possible areas
of misadjustment have been
checked and the problem persists,
contact your local Lincoln
Authorized Field Service Facility.
IDEALARC SP-255
E-5