EN
5. ERROR CODES
The machine always checks its operation automatically during start-up and reports any
failures detected. If failures are detected during start-up, they are shown as error codes on the
control panel display.
Error 2: Power source undervoltage
The device has stopped because it has detected a mains undervoltage that disturbs welding.
Check the quality of the supply network.
Error 3: Power source overvoltage
The machine has stopped the welding because it has detected momentary voltage spikes or
continuous overvoltage dangerous to the machine in the electric network. Check the quality
of the supply network.
Error 4: Power source overheating
The power source has overheated. The cause may be one of the following:
• The power source has been used for a long time at maximum power.
• The circulation of cooling air to the power source is blocked.
• The cooling system has experienced a failure.
Remove any obstacle to air circulation, and wait until the power source fan has cooled down
the machine.
Other error codes:
The machine can show codes not listed here. In the event of an unlisted code appearing,
contact an authorised Kemppi service agent and report the error code shown.
5.1 Troubleshooting
Problem Cause
The main switch indicator will not
light up.
• No electricity connected to the machine
• Check the mains supply fuses.
• Check the mains cable and plug.
Poor welding results. Several factors aect the welding quality.
• Ensure that the welding current selected is adequate for the selected electrode type
and size.
• Ensure the cable connections are correct and secure.
• Ensure the process selection is correct.
• Check that the earth return clamp connection area is clean and that the cable and
clamp is not damaged.
• For TIG welding, check that the shielding gas ow is switched on and set correctly.
Poor ignition and arc quality in TIG welding may be a result of a poorly prepared
tungsten electrode. Always maintain and grind a point on the TIG torch electrode tip
before welding.
Overheating indicator is illuminated. Normally, this indicates that the device has reached its maximum designed operating
temperature. The thermostat has become active, switching the welding power o.
Allow the unit to cool and the machine will soon automatically reset and allow
welding to re-start.
• Ensure that cooling air has unrestricted ow.
• If the machine’s duty cycle has been exceeded, wait for indicator to turn o.
In certain circumstances, this light may also indicate irregularity in the supply voltage.
Too low or high supply voltage.
If the machine’s malfunction is not eliminated with the above measures, contact Kemppi
service.
MinarcTig Evo 200, 200MLP
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