No.
Breakdown
Analysis
Cooling fan broken
Cooling fan
1
Not work
Cable broken/fallen off
Torch switch broken
No piloting
2
Main PC board broken
high frequency
Cable broken/fallen off
No Argon input
Main PC board broken
No Argon
3
output
Electromagnetism Valve broken
Gas path blocked
Overheat inside the machine
Protection
4
Thermal relay broken
Indicator On
Over/Lack voltage more Than 15%
Relevant potentiometer broken
Panel knob not
5
Main PC board broken
adjustable
Cable broken/fallen off
Digital Amp meter broken
No display on
6
Cable broken/fallen off
the AMP meter
Main PC board broken
Wrong connection between torch and welder
Arc piloting not
7
Argon not pure
smooth
Tungsten electrode or pin broken
First turning on after power long time (2days more) off Not fault, trip caused by the charging filter capacitor
8
Power trip
9
Others
Troubleshooting
Solutions
Replace the fan
Find the disconnected wire and Connect reliably
Replace the torch
Replace the PC board
Find the disconnected wire and Connect reliably
Check the flow meter and resume supplying gas to
the welder
Replace the PC board
Change the electromagnetism valve
Clear the eyewinker and dredge the gas path
Become normal after the inside temperature reduced
Replace the thermal relay
Become normal after voltage ok
Replace the potentiometer
Replace the PC board
Find the disconnected wire and Connect reliably
Change the meter
Find the disconnected wire and Connect reliably
Replace the PC board
Check and correct according the manual
Use 99.99% pure Argon
Use qualified Tungsten electrode
in the main board, return on the power switch
Please contact with the supplier/manufactuer
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