EN4.2 trOuBleshOOtingProblem CauseThe 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 result Several factors affect the welding quality.• Check that the earthing clamp is firmly attached, the point ofattachment is clean and that the cable and its connectors areintact.• Check that the shielding gas flows out of the torch tip.• Check that the electric voltage is not irregular or too low/high.Overheating indicator lit The device has overheated.• Ensure that cooling air has unrestricted flow.• If the machine’s duty cycle has been exceeded, wait for indicatorto turn off.• Too low or high supply voltage.If the machine’s malfunction is not eliminated with these measures, contactKEMPPI service.5. DispOsalDo not dispose of electrical equipment with normal waste!In observance of European Directive 2002/96/EC on waste electricaland electronic equipment, and its implementation in accordance withnational law, electrical equipment that has reached the end of its life mustbe collected separately and taken to an appropriate environmentallyresponsible recycling facility.The owner of the equipment is obliged to deliver a decommissioned unitto a regional collection centre, per the instructions of local authoritiesor a Kemppi representative. By applying this European Directive you willimprove the environment and human health.14Minarc 150, 151, 150 VRD, 120/150 AU / © Kemppi Oy / 0901