Longevity TIGWELD 200 SX - Manual (Page 16)

160 SX/200SX AC/DC TIG STICK WELDER
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F、The oxide film can’t be torn when welding aluminum:
1. The welding gear is selected wrong.
2. The duty cycle is adjusted too small;
3. The secondary inverter has field pipe damage.
G、The abnormal pilot lamp is on:
1、The light is on when the welder work abnormally, please turn off the power switch and then
reboot the machine, it can continue to use if it return to normal,
2、If the light is on repeatedly, please refer to the professional or the manufacturer for repair.