Paton MINI - Troubleshooting

PATON ECO DC MMA - 14 -
10. TROUBLESHOOTING
Fault Reason Solution
No welding current
The mains switch is ON,
the status indicator is OFF
Damaged mains cable
Check the mains cable.
The supply voltage is below
155V (or one of the phases is
failed for ECO-315-400V)
Disconnect the unit and connect
to the mains with the
appropriate supply voltage
The internal power supply
unit of the source is failed
Contact the service centre
No welding current
The mains switch is ON,
the source status
indicator is green
Disconnected welding cables
Check the plug connections
Ground is not connected or
poorly connected
Establish good contact between
the ground cable and the unit
No welding current
The mains switch is ON,
the source overheat
status indicator is solid
red
Thermal sensor triggered
Wait until the unit cools down; it
will automatically turn on again
afterwards
Insufficient cooling air supply
Ensure sufficient air flow
Defective thermal sensor
Contact the service centre
Poor MMA striking,
source overheat status
indicator flashes red for a
short time
The supply voltage at the
moment of striking is close to
the minimum
admissible value of 165V (or
all phases are slumped to ~
315V for ECO-315-400V)
If it is impossible to increase the
cross-section of the supply wires,
try decreasing the value of the
set current, until the arc can be
ignited. Then use the electrode
according to the current value.
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