arcweld 210C MIG, Руководство оператора, Страница: 28 / 31

F-3
MAINTANANCE AND TROUBLESHOOTING
F-3
Troubleshooting Guide
No. Problem Possible Cause What to do
1
Yellow Thermal
Indicator is on
Input voltage is too high
(≥15%)
Switch off power source; Check the main supply.
Restart welder when power recovers to normal
state.
Input voltage is too low
(≤15%)
Insufficient ventilation. Improve the ventilation.
Ambient temperature is too
high.
It will automatically recover when the
temperature reduces.
Exceeding the rated
duty-cycle.
It will automatically recover when the
temperature reduces.
2
Wire feeding motor
not working
Potentiometer faulty Change potentiometer
Contact tip is blocked. Change contact tip
Drive roll is loose. Increase tension on drive roll
3
Cooling Fan not
working or turning
very slowly
Switch broken Replace the switch
Fan broken Replace or repair the fan
Wire broken or disconnected Check the connection
4
Arc is not stable and
spatter is large
Too large contact tip makes
the current unsteady
Change to proper contact tip and / or drive roll.
Too thin power cable makes
the power unstable.
Change the power cable .
Too low input voltage
Correct the input voltage.
Wire feeding resistance is
too large Clean or replace the liner and keep the gun
cable straight.
5
Arc will not start
Work cable broken Connect / repair work cable
Work piece has greasy, dirty,
rusty or painted Clean work piece, ensure good electrical contact
between work clamp and job.
6
No shielding gas
Torch is not connected
properly. Re-connect the torch .
Gas pipe is crimped or
blocked. Check gas system.
Gas hose broken. Repair or replace
7
Others
Please contact our Field Service Shop.