We allow 14 days for the customer to contact us about a defective machine. Within that 14 day period, you can either take the defective machine to a certified repair facility and have the machine repaired OR return the machine to us for an exchange. We never ship a replacement machine until we receive, inspect, and verify the original machine is defective. Outside of the 14 day window, the customer must have the machine repaired per the manufacturers warranty guidelines. The customer is responsible for any return shipping to Welding Supplies from IOC or getting the machine to a repair facility.