Jasic JT-200A - Page 15

13
Symptom
Cause
Solution
1. Switch the power on, no weld
output,
1." Insufficient power source or short of
phase.
2." Input connection failure.
3." Secondary power source inside this
equipment failure.
1." Compensate the input failure.
2." Reconnect the input connection.
3." Ask the authorized supplier for further
advice.
2.The regulator indicates, no
sound of releasing electricity,
no show of breakdown.
1." Switch failure.
2." Electricity releasing components failure.
3." Misconnections of air Plug.
1." Replace the switch.
2." Adjust the distance between the electricity
releasing components.
3." Reconnect.
3. Electricity releasing presents,
but no current output.
1." Earth cable connection failure.
2." Torch cable short-circuited.
1." Reconnect.
2." Reconnect.
4. Current output Presents, but
not adjustable,
1." Wrong connection of pedal controller.
2." The potentiometer of pedal controller is
damaged or worn.
1." Opt pedal controller on mode.
2." Replace the Potentiometer.
5. Hand control mode available,
while Pedal control
malfunctions.
1." The switch of pedal controller is
malfunctioning.
2." The potentiometer of pedal controller is
malfunctioning.
1." Replace the switch of pedal controller.
2." Replace1K potentiometer.
6. Warning Indicator light on.
1." Be of over-amperage protection status.
2." Excessive dust accumulated and thus
causes the short circuit.
3." Components inside the equipment
malfunctioning.
1." Switch of the power source. Let the
equipment cool down and operated again.
2." Remove the dust accumulated inside the
equipment with compressed air.
3." Ask the professionals for further advice.
7. Unable to weld oxidized
Aluminum.
1." Mode option error.
2." Excessively low clean width.
3." M OS F E T o f s e c o n d a ry I n v e r t e r
damaged.
1." Select AC mode.
2." Increase the clean width or remove the
oxidized coating.
3." Contract the supplier for further advice.
8. Current output presents, but
no gas output.
1." Electromagnetic valve functions.
1.1"Gas nozzle is blocked.
1.2"Gas hose of welding torch is cracked or
worn.
2." Electromagnetic valve disables.
2.1"Electromagnetic valve is damaged.
2.2"The circuit of electromagnetic valve is
malfunctions.
1." Unblock the gas nozzle.
2." Replace it.
3." Replace the electromagnetic valve.
4." Ask the professionals for further advice.
9. Tungsten Damaged.
Excessive high Clean Width.
Adjust the Clean Width counterclockwise.
10. Earth cable is excessively
heated.
Earth lead connections failure.
Reconnect.