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insufficient shielding gas to cover all weld
joints. It is suggested that the argon flow
rate be no less than 5L/min, no matter how
small the current.
(3) Check whether the gas path is leaking,
or whether the gas purity is too low.
(4) Check whether there is strong ambient
air flow in the environment.
Hard to start
arc
Arc is easily
interrupted
Poor quality or
serious oxidation of
the tungsten
electrode
(1) Replace the tungsten grade with better
quality.
(2) Grind off the tungsten oxide layer.
(3) Increase the post-flow delay time to
avoid tungsten oxidation.
Unstable
current when
welding
The voltage of the
power grid fluctuates
seriously or the joint
contact with the
power grid is poor.
Serious interference
from other electrical
equipment.
(1) Check whether the power grid is normal
and connect the power connector.
(2) Use different power cords to connect
equipment that could seriously interfere
with welder.
Other faults
Please contact the maintenance personnel
of JASIC Technology Co. Ltd
9.2. Alarm and solutions
Error
code
Category
Possible cause
Countermeasure
E10
Overcurrent
protection
Continuously
output the
maximum
capacity current
of welder
Restart the welder. If overcurrent protection
alarm is still active, contact the after-sales
department.
E31
Undervoltage
protection
Input network
voltage is too low
Turn off the machine and restart it. If this the
alarm cannot be eliminated and the grid voltage
remains too low, check the power grid voltage
and wait for the grid to be normal before welding.
If the grid voltage is normal and the alarm
persists, contact professional maintenance
personnel.
E32
Overvoltage
protection
Input network
voltage is too
high
Turn off the machine and restart it. If the alarm
cannot be eliminated and the grid voltage
remains too high, check the power grid voltage
and wait for the grid to be normal before welding.
If the grid voltage is normal and the alarm
