FitWeld Evo 300 [16/20] Troubleshooting

FitWeld Evo 300

2.7 Troubleshooting

Problem Cause

The machine stops working and the

shielding gas indicator is lit.

The maximum ow rate at the gas cylinder is set to a lower value than the ow rate

you are trying to set with the FitWeld Evo 300 ow adjustment screw.

• At the gas cylinder’s ow regulator, set the ow rate much higher than what you

are using in welding. The nal adjustment of the gas ow rate is accomplished

with the adjustment screw located inside the FitWeld’s wire cabin.

Poor welding result Several factors aect the welding quality.

• Check that the earth return clamp is properly attached, the point of contact is clean

and that the cable and its connectors are intact.

• Check the voltage and wire speed settings on the control panel are correct for the

given wire size and type.

• Check that the shielding gas ow rate at the gun nozzle is correct.

• Check that the shielding gas is suitable for the ller wire used.

• Check that the wire feed is constant, and adjust if necessary.

• Check that the mains voltage is not irregular, too low or too high.

Overheating indicator lit The device has overheated.

• Ensure that cooling air has unrestricted ow.

• The machine’s duty cycle has been exceeded. Wait for indicator to turn o.

• Too low or high supply voltage.

The wire does not move or wire feed

entangles

Feed rolls, wire liner or contact tips may be defective

• Check that feed rolls are not too tight or too loose.

• Check that the feed roll groove is not too worn or incorrect size for the ller wire

used.

• Check that the wire liner is the correct size and is not blocked or worn out. Replace

if necessary.

• Check that the contact tip is suitable for the wire used and and is not worn out or

blocked.

Main switch indicator does not switch

The machine has no mains voltage

• Check the mains fuses

• Check the mains cable and the wall plug

If the machine’s malfunction can not be corrected with these measures, contact KEMPPI

maintenance service.