I need your valuable help. While doing long welding my pocket welder stopped and heat light come on. Now only all 3 light and heat light is on but non of buttons functioning. I thing heat relay has fault but if anybody comeacross with this issue could you pls let me know which part should i change.
Hello and welcome to the Forum !
Is the machine still under warranty? If so, return it to your supplier and ask for repair or a replacement.
Please bear in mind that the overheat light may also be used to indicate a general fault, not just overtemperature.
Start by looking carefully for any components that are burnt or show signs of overheating, particularly the large semiconductors that are screwed to the finned aluminium heatsink.
Post #5 of this earlier thread may be helpful:
The Error light is called the "Malfunction Indicator", so it can represent more than just overtemperature.
I do not find any reference to Factory Reset in the manual.