Troubleshooting
GB
66
CPTX 400/400w/450w Synergy
13. Troubleshooting
Failure
Cause
Repair
After switching on, the power
source doesn’t work
The power line
is damaged
Check the power line
The fuses are blown
Replace the fuses
The On/Off switch is
damaged
Replace the On/Off switch
The welding transformer is
damaged
Replace the welding
transformer
During the welding process,
the arc
suddenly interrupts
Because of the overheating
the thermostat turns off the
device
- the yellow light is on -
After the device is cooled
down it turns on automatically
- the yellow light switches off
–
DURING THE COOLING DON’T
TURN OFF THE POWER
SOURCE!
Poor or unstable arc
The contact between the
clamp and the work piece
is too weak
Screw the clamp to the
work piece
The selected welding
current is too low
Choose a higher power
No welding power
power switch is on
Ground cable incorrect
Check and screw the clamp
The power cable in the
welding torch is broken
Change the torch
Nothing happens after
pressing the torch switch
Power switch is on
Welding torch is defect
Change the welding torch
