Jasic MIG500P - 6.3.2 MIG Problems and Troubleshooting

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Fan is not working or
abnormal rotating
speed during welding
· 3 phase power cable is
well connected
·phase loss
· input voltage is too low
· connect well the 3 phase power cable
·solve the power input phase loss
·resume operation after input voltage is back to
normal
The left
display shows
“EXX” ， and
right display
shows“---”
E60
·overheat protection
（thermoswitch）
· Auto recovery after machine is cooled down.
E61
·over-heat protection
（temperature probe）
·Auto recovery after machine is cooled down
E31
· low supply voltage
· failure on auxiliary power
supply
· Machine can resume to work when power grid input
voltage is back to normal.
· replace the new control board or industrial frequency
transformer
E10
· Over current or failed
power components
· restart the machine; if over-current still exists, please
contact Jasic service man.
E71
· Failure on water flow
· Please check if there is not enough water in the
radiator and check if water flow is under good
condition.
E70
· Water cooler over-heat
· The radiator is not well
connected to the welder
· Radiator is over-heated; stop welding until the
radiator is cooled off and problem is solved.
· Please do checking after turn off the machine; or there
might be danger of electric shock hazard.
E52
· Wire feeder
communication failure
· connect tight the control cable; if the problem still
cannot be solved, please contact Jasic service
center.
6.3.2 MIG problems and troubleshooting
Table 6-2 MIG problems and troubleshooting.
Failures or problems
Analysis
Solutions suggested
Machine has no current
output and no failure
· failure on welding loop
· failed current feedback inside the
machine
· please check welding loop and fix the
according problem
· Please contact Jasic service center for
professional solutions.
There is gas and current
output when push torch
trigger, but no wire
feed.
· worn wire feeder control cable
· stuck wire feeder
·failure on wire feeder
· failed machine control board.
· replace or fix the worn wire feeder
control cable.
· make sure wire feeder is not stuck
· fix wire feeder
· replace control board
Welding current is
unstable
· inappropriate wire feeder moment knob
adjustment
· please adjust the suitable wire feeder
moment force