Troubleshooting
Service & repair should only be performed by R-Tech welding trained personnel. Unauthorized
repairs performed on this equipment may result in danger or injury to the technician and machine
operator and will invalidate your warranty. For your safety and to avoid electric shock, please
observe all safety notes and precautions detailed throughout this manual
The troubleshooting guide is provided to help you locate possible machine malfunctions
If fault / problem is not listed below check our Mig Welder Support page on our website:
www.r-techwelding.co.uk/support.php
or contact R-Tech by phone. Contact details can be found
on our website
Output 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 MIG torch.
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 tip – No wire feed
Check wire feed unit protecting fuse on rear of machine, if blown replace with new fuse of
same rating, if the fuse blows again contact R-Tech
Machine keeps overheating - Warning light is lit on machine
Check if fan is running – if not contact R-Tech. 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 MIG 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 the condition of the MIG torch, try another MIG torch
.
