14
List 8
Troubles
Possible causes
Eliminate methods
Fun does not work after
turning on the power switch
Power does not exist
Check input power
Power switch is broken
Change power switch
Disconnection inside machine Check inside connecting
The fun is broken
Change fun
Trouble of
arc-igniting
No voice of
HF
discharging
exists inside
machine
Torch switch or “arc control”
jack is broken or its
connection is no good
Check the condition of switch or
jack and its connection
220V/125V transformer is
disconnected or broken
Check transformer and its
connecting
Can not close J2(4123) relay
Check relay
High voltage box or capacitor
is broken
Check High voltage box or
capacitor
Voice of HF
discharging
exists inside
machine
Overheat protection or
overflow protection
Turn off the mcahine for a few
minutes and retry
Tungsten electrode is far
away from workpiece
Keep the distance of 2-3mm
between tungsten electrode and
workpiece
Tungsten electrode is not
sharp or is broken
Sharpen tungsten electrode
Tungsten electrode is bad
fixed or its quality is bad
Refix or change good tungsten
electrode
Welding current is too low or
workpiece is too dirty
Enlarge current or clean
workpiece
Discharging clearance of Arc
ignition unit is dirty
Clean clearance with sand paper
or
alcohol
Output rapid diode is broken
Change diode
HF can not be turned off
Torch switch or arc control
wire is short- circuited
Check switch and jack
Relay J2(4123) in
AP-WSM(2) board is broken
Change relay J2(4123)
B3(339)in board AP1 is
broken
Change B3(339) or board AP1
Содержание TIG200P
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