AX MIG WelderOperating manual - EN3 Too high mainsvoltageVoltage in mains network is too high. Restart the power source. If problem persists, contactKemppi service.4 Power source isoverheatedToo long welding session with highpower.Do not shut down, let the fans cool the machine. If fansare not running, contact Kemppi service5 Internal 24Vvoltage is toolowPower source contains an inoperative24V power supply unit .Restart the power source. If problem persists, contactKemppi service.7 Wire feeder notfoundWire feeder is not connected to powersource or connection is faulty.Check the control cable and its connectors.8 Initializationerror in FPGAcardControl card is faulty or software fails inpower source.Restart the power source. If problem persists, contactKemppi service.9 Measurementcable failureVoltage sensing cable is not connectedto the work piece or measurementcable connection is faulty.Connect voltage sensing cable to the work piece andcheck the measurement cable and its connectors.11 FET unit failure Power source contains an inoperativeFET unit.Restart the power source. If problem persists, contactKemppi service.12 Welding cablefailurePlus and minus cables are connectedtogether.Check the connections of welding cable and earth returncable.13 IGBT overcurrent Inoperative mains transformer in powersource.Restart the power source. If problem persists, contactKemppi service.14 IGBT overheated Too long welding session with highpower or high ambient temperature.Do not shut down, let the fans cool the machine. If fansare not running, contact Kemppi service.17 Phase is missingfrom mains sup-plyOne or more phases are missing fromthe mains supply.Check the mains cable and its connectors. Check thevoltage of mains supply.20 Power sourcecooling failureCooling capacity is reduced in thepower source.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.24 Cooling liquidoverheatedToo long welding session with highpower or high ambient temperature.Do not turn off the cooler. Let the liquid circulate untilthe fans cool it down. If fans are not running, contactKemppi service.26 Cooling liquidnot circulatingNo cooling liquid or circulation isblocked.Check the liquid level in the cooler. Check hoses and con-nectors for blockage.27 Cooler notfoundCooling is turned on in the settingsmenu, but cooler is not connected topower source or cabling is faulty.Check the cooler connections. Ensure that the cooling isturned off in the settings menu, if the cooler is not in use.33 Welding cablecalibration fail-ureWelding cable calibration failed. Check the welding system cables and their connections.40 VRD error Open circuit voltage exceeds the VRDlimit.Restart the power source. If problem persists, contactKemppi service.41 Wire feeder notcalibratedWire feeder calibration has been lost. Restart the welding system. If problem persists, contactKemppi service.42 High current inwire feedermotorThere may be too much pressure in thewire feed rolls or dirt in the wire line.Adjust the feed roll pressure. Clean the wire line. Changeworn parts in the welding gun.© Kemppi 151 1921900 / 2318