OPERATION CONTROL AND CONNECTORS
19
Please utilise the below trouble shooting chart for addressing any issues:
S/N
Issue
Reasons
Solutions
1
Turning on the power source, and fan
works, but the power light is not on?
The power light is
damaged, or the
connection is not good
Test and repair the inside
circuit of power light Pr3
Power PCB failures
Repair or change power
PCB Pr2
2
Turning on the power source and the
power light is on, but fan doesn’t
work?
There is something in the
fan
Clear out
The fan motor damaged
Change fan motor
3
Turning on the power source, and the
power light is not on and fan doesn’t
work?
No input voltage
Check whether there is
input voltage
Overvoltage (Input voltage
is too much or not)
Check input voltage
4
No no-load voltage output?
There is a problem inside
the machine
Check the main circuit, Pr1
and Pr2
5
No current output?
Welding cable is not
connected to the welder.
Connect the welding cable
to the welder’s output
Welding cable is broken
Wrap, repair or change the
welding cable
Earth cable is not
connected or loose.
Check the earth clamp
6
Difficult to start arc or electrode
sticking
The plug or connections
are loose.
Check and tighten the plug
Oil or dust covered the
workpiece
Check and clear out
MMA/TIG welding
selection is wrong
Select MMA welding
7
The arc is not stable in the welding
process
The arc force is too small
Increase the arc force
8
The welding current can not be
adjusted
The welding current
potentiometer in the front
panel connection faulty or
damaged
Repair or change the
potentiometer
9
The penetration of molten pool is not
dep enough. (MMA)
The welding current is
adjusted too low
Increase the welding
current
The arc force adjusted too
small
Increase the arc force
10
Arc blow
Airflow disturbance
Shelter from airflow
The electrode eccentricity
Adjust the electrode angle
Summary of Contents for ARCOSTICK MMA 180
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