Assuming that the Hobart TIG welder is supplied with the right power supply and is the correct choice for the material, the first thing to check is the status of the wiring, fuse and hose connections. Users should also check & clean dirt or dust accumulated on the fan causing heating of the unit. Remote control, tungsten rod & torch cable should also be checked regularly for smooth operation. Users should take care that the material is not in contact with any grounded surface and the gas flow rate is as required by the unit. They should also check for wear & tear on the Hobart TIG welder parts. Hobart offers one year industrial warranty on guns (MIG, plasma & TIG torches) for ensuring quick & easy replacement within the warranty period.