Can't cut or no high
frequency output.
No response after
turning on the torch
switch.
No response after
turning on power supply.
1. Discharge gap is too
big.
2. High pressure mica
capacitance damaged.
3. Pilot transformer is
damaged.
4. Main controlling board
is damaged.
5. Ground lead is broken
1. Switch and ground-
lead are broken.
2. Switch board is
broken.
3. Main controlling board
is damaged.
4. Transformer is
damaged.
5. Ground lead is
broken.
1. Power cord hooked up
wrong.
2. Power supply switch is
broken.
3. Fuse is damaged.
4. Transformer is broken.
5. Main controlling board
is ruined.
5-3
1. Adjust to suitable gap.
2. Replace.
3. Replace.
4. Examine and repair.
5. Examine and repair.
1. Examine and repair or
replace.
2. Examine and repair or
replace.
3. Examine and repair or
replace.
4. Replace.
5. Examine and repair.
1. Examine and repair.
2. Replace.
3. Replace.
4. Replace.
5. Examine and repair or
replace.