8
TROUBLESHOOTING
Notes: The following operations must be performed by qualified electricians with valid
certifications. Before maintenance,please contact with us for professional suggestion.
Problem
Cause
Solution
The machine does not
work when the main switch
is turned on
1, No power input
2, Power cord or power plug is
broken
3, Main switch is broken
4, PCB is broken
1, Check circuit or fuse of power
source
2, Replace power cord
3, Replace switch
4, Replace PCB.
Will not weld
1, Incorrect power input
2, Inadequate current at output
3, Poor connection of output cable
4, Dirty surface
5, Wrong welding wire
1, Check the power source
2, Check for proper grounding to the
work piece
3, Check output connection
4, Clean surfaces
5, Use correct wire
Blown fuse or tripped
circuit breaker
Inadequate fuse or circuit breaker
Short circuit inner machine
Check the fuse in power source
should be 25amp
Arc is hard to start
1, Wrong welding wire
2, Base metal not grounded reliable
1, Use correct one
2, Make sure the connection is good
Inconsistent arc or wire
feed
1, Not enough drive roller pressure
2, Spool hub tension too tight or
loose
3, Contact tip worm or wrong size
4, Rusty or corroded wire
1, Tighten the drive tension adjustor
on wire feeder
2, Adjust the wing nut on the spool
holder
3, Replace contact tip
4, Replace wire.
Summary of Contents for MIG-200D
Page 1: ...User Manual MIG 200D ...
