Troubleshooting and error codes
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The problems and the possible causes listed are not definitive, but suggest some typical situations that may turn up during normal use of the welding system. For further information and assistance, contact your nearest Kemppi service workshop. |
General troubleshooting
The welding system does not power up
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Check that the mains cable is plugged in properly. |
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Check that the mains switch of the power source is at the ON position. |
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Check that the mains power distribution is on. |
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Check the mains fuse and/or the circuit breaker. |
The welding system stops working
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The torch may have overheated. Wait for it to cool down. |
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Check that none of the cables is loose. |
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The power source may have overheated. Wait for it to cool down and see that the cooling fans work properly and the air flow is unobstructed. |
Carbon arc gouging quality
Large free carbon deposit at the beginning of the groove or at various spots
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Ensure that the air flow is turned on before striking the arc, so that the air flows between the electrode and the work piece. |
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Ensure that the gouging carbon is positioned properly in the electrode holder. |
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Check that the angle between the electrode and the work piece doesn't get too small. |
An unsteady arc (slowing down the travel speed)
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Ensure that the gouging current is enough for the electrode diameter used, or use an electrode smaller in diameter. |
Erratic groove and operation, and electrode heating up too fast
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Check the polarity of the connections. For most metals, it is recommended to use the DC electrodes connected to the positive side (in carbon arc gouging). Only a few copper alloys may create an exception. |
Irregular groove surface
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Focus on the travel speed when working. Too slow and/or unsteady travel speed in manual gouging can result in irregular groove surface. |
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Check that the ground connection and cable are in working order. |
Error codes
If the machine encounters an error, it is indicated on the display with "Err" text and an error code number.
Err 1: Power source not calibrated
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Power source calibration has been lost. Restart the power source. If problem persists, contact Kemppi service. |
Err 3: Too high mains voltage
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Voltage in mains network is too high. Restart the power source. If problem persists, contact Kemppi service. |
Err 4: Power source is overheated
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Too long welding session with high power. Do not shut down, let the fans cool the machine. If fans are not running, contact Kemppi service |
Err 5: Internal 24V voltage is too low
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Power source contains an inoperative 24V power supply unit. Restart the power source. If problem persists, contact Kemppi service. |
Err 10: Missing power supply unit
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Internal communication error. Restart the power source. If problem persists, contact Kemppi service. |
Err 14: IGBT overheated
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Too long welding session with high power or high ambient temperature. Do not shut down, let the fans cool the machine. If fans are not running, contact Kemppi service. |
Err 17: Phase is missing from mains supply
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One or more phases are missing from the mains supply. Check the mains cable and its connectors. Check the voltage of mains supply. |
Err 244: Internal memory failure
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Initialization failed. Restart welding system. If problem persists, contact Kemppi service. |
Err 250: Internal memory failure
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Memory communication failed. Restart welding system. If problem persists, contact Kemppi service. |
Other error codes: The machine can show codes not listed here. In such case, contact an authorized Kemppi service.
