22
Fan works; abnormity light doesn’t
light, but with no welding output;
1.Make sure operator has pulled the torch trigger and make sure
it’s in good contact.
2.Check whether DC15V power supply is normal;
3.Check whether drive wire is tightly connected.
4.Check whether panel potentiometer is open-circuited.
5.Output terminal connection is in poor connection.
Fan is working; abnormity indicator
lights, but with no welding output;
1.Might be over-current protection; please turn off the machine;
restart the machine when abnormity indicator stop lighting, and
welder will go back to normal operation;
2.Might be over-heat protection; waif for 5-7 minutes and machine
will go back to normal operation automatically;
3.Might be caused by a failed thermistor on radiator; replace it with
a new one;
4. Might be caused by a failed IGBT on inverter PCB.
Black welding spot
1.Please make sure argon outlet from welding torch nozzle is
normal.
2.Argon flow is too small; generally argon flow should be 5L/min
；
3.Please check whether air circulation is in good sealing condition
and please check gas purity;
4.Please make sure there is no strong airflow in the welding site.
Poor protection for welding bead in
the end of welding processing.
1. Don’t move the welding torch immediately after welding is
finished, so that to retain the shielding gas’s protection for high
temperature welding bead.
2. Prolong post-flow time.
Hard to achieve successful arc
ignition; frequent current interruption.
1.Change a new tungsten;
2.Remove tungsten oxidation layer.
3.Prolong post-flow time;
4.Adjust tungsten electrode discharge distance(around0.8mm)
Digital Welder Expert, Know You More
https://www.arccaptain.com
To Next Page
Loading...
