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Tig welding problems
No output - Power light is not lit
Check machine on/off switch is in the ‘on’ position
Check Input power to machine
Check plug wiring
Check mains trip / fuses
No output - Fan runs - Power light is lit
Check torch connections are secure and torch switch operation, try replacing tig torch.
If you have a multi-meter check continuity between pins 1 and 2 on torch switch plug when
pressing torch switch
No output - Power light is lit - Warning light is lit
Welding application may have exceeded recommended duty cycle, allow machine to cool
down until the warning light goes out.
No output
– Power light is lit – Gas at torch end when trigger pressed
Check torch condition
– possible break in torch power cable – replace torch
Machine keeps overheating - Warning light is lit on machine
Check if fan is running
– if not contact R-Tech for repair
Check the cooling vents for obstruction, blow out machine with clean dry low pressure air
supply. Check for adequate ventilation around machine
Porosity in weld
– No / low gas at torch tip
Check gas supply from gas bottle
Check flow rate on regulator
Check gas hose for restrictions
Check for draughts in local area, open doors etc
Replace tig torch
– may have gas restriction
Poor weld penetration
Check condition of earth lead and clamp and ensure clamp is connection via a clean area
on work piece
Check condition of tig torch, try other tig torch
