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3
Too high mains
voltage
4
Power source is
overheated
5
Internal 24V
voltage is too
low
7
Wire feeder not
found
Initialization
8
error in FPGA
card
Measurement
9
cable failure
FET unit failure
11
12
Welding cable
failure
13
IGBT overcurrent
14
IGBT overheated
17
Phase is missing
from mains sup-
ply
20
Power source
cooling failure
24
Cooling liquid
overheated
26
Cooling liquid
not circulating
Cooler not
27
found
Welding cable
33
calibration fail-
ure
VRD error
40
41
Wire feeder not
calibrated
42
High current in
wire feeder
motor
© Kemppi
Voltage in mains network is too high.
Too long welding session with high
power.
Power source contains an inoperative
24V power supply unit .
Wire feeder is not connected to power
source or connection is faulty.
Control card is faulty or software fails in
power source.
Voltage sensing cable is not connected
to the work piece or measurement
cable connection is faulty.
Power source contains an inoperative
FET unit.
Plus and minus cables are connected
together.
Inoperative mains transformer in power
source.
Too long welding session with high
power or high ambient temperature.
One or more phases are missing from
the mains supply.
Cooling capacity is reduced in the
power source.
Too long welding session with high
power or high ambient temperature.
No cooling liquid or circulation is
blocked.
Cooling is turned on in the settings
menu, but cooler is not connected to
power source or cabling is faulty.
Welding cable calibration failed.
Open circuit voltage exceeds the VRD
limit.
Wire feeder calibration has been lost.
There may be too much pressure in the
wire feed rolls or dirt in the wire line.
Restart the power source. If problem persists, contact
Kemppi service.
Do not shut down, let the fans cool the machine. If fans
are not running, contact Kemppi service
Restart the power source. If problem persists, contact
Kemppi service.
Check the control cable and its connectors.
Restart the power source. If problem persists, contact
Kemppi service.
Connect voltage sensing cable to the work piece and
check the measurement cable and its connectors.
Restart the power source. If problem persists, contact
Kemppi service.
Check the connections of welding cable and earth return
cable.
Restart the power source. If problem persists, contact
Kemppi service.
Do not shut down, let the fans cool the machine. If fans
are not running, contact Kemppi service.
Check the mains cable and its connectors. Check the
voltage of mains supply.
Clean the filters and clear any dirt from the cooling chan-
nel. Check that the cooling fans are running. If not, con-
tact Kemppi service.
Do not turn off the cooler. Let the liquid circulate until
the fans cool it down. If fans are not running, contact
Kemppi service.
Check the liquid level in the cooler. Check hoses and con-
nectors for blockage.
Check the cooler connections. Ensure that the cooling is
turned off in the settings menu, if the cooler is not in use.
Check the welding system cables and their connections.
Restart the power source. If problem persists, contact
Kemppi service.
Restart the welding system. If problem persists, contact
Kemppi service.
Adjust the feed roll pressure. Clean the wire line. Change
worn parts in the welding gun.
151
AX MIG Welder
Operating manual - EN
1921900 / 2318
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