C-
1
TROUBLESHOOTING
C-
1
Rev. 13
INVERTEC
®
CC400-T/TP
CAUTION
If for any reason you do not understand the test procedures or are unable to
perform the tests/repairs safely, contact your local authorized Lincoln Electric
Field Service Facility for technical assistance.
Observe all Safety Guidelines detailed in the beginning and throughout this menual.
Problems (Symptoms)
Possible Areas of Misadjustment(s)
Recommended Course of Action
Output Problems
Major physical or electrical
damage is evident when the
sheet metal covers are removed.
None
Contact your local authorized
Lincoln Electric Field Service
facility for technical assistance.
Input breaker keeps tripping.
1. Make certain that fuses or
breakers are properly sized.
See Installation section of this
manual for recommended
fuse and breaker sizes.
2. Welding procedure is drawing
too much output current, or duty
cycle is too high. Reduce
output current, duty cycle, or
both.
3. There is internal damage to
the power source.
If there is internal damage,
contact an authorized Lincoln
Electric Service facility for
technical assistance.
Machine will not power up
(no lights, no fan, etc.).
1.
Make certain that the power to
the CC400-T/ TP is energized
normally and is within the
operating range.
Check if the main power switch
in control box of power cabin
is turned on.
Thermal LED is lit.
1.
Check for proper fan operation.
(Fan should run whenever
output power is on.) Check for
material blocking intake or
exhaust louvers, or for
excessive dirt clogging cooling
channels in machine.
2.
Machine may have been
operated above it’s duty cycle.
Clear obstruction or repair fan.
After machine has cooled,
reduce load, duty cycle, or
both.
Machine won’t weld, can’t get any
output.
1.
Error code appears.
2.
If the Thermal LED is also lit, see
Thermal LED is Lit section.
Refer to error code
Contact your local authorized
Lincoln Electric Field Service
facility for technical assistance.
Machine won’t produce full
output.
1.
Input voltage may be too low,
limiting output capability of the
power source.
2. Current or voltage display
meter is not properly
calibrated.
3. The welding cable and work
cable are too long, or their
across area art too small.
Correct input voltage level.
Contact your local authorized
Lincoln Electric Field Service
facility for technical assistance.
Shorten welding cable and
work cable, or use bigger size
cables for reducing the voltage
drop on cables.
General degradation of the weld
performance.
1. Check for electrode holding
problems, bad connections,
excessive loops in cabling, etc.
2. Verify weld mode is correct for
processes.
3. The power source may require
calibration.
Contact an authorized Lincoln
Electric Service facility for
technical assistance.