27
Troubles
Cause
Remedy
1.Fan does not work
properly
1.
The fan connector is loose
2.
Fan breakage
1.Connect the fan connector
2.Change the fan
2.No indicating on
the front panel
1.The power line is loose
2. Indicating light broken
3.The fuse or IGBT broken
1.Check the power & plug
2.Change it
3.Change the fuse 5A/250V or Contact R-
Tech
3.Over heating light
on(warning led lights
red or yellow color)
1.
Aeration is not good
2.
The temperature is too high
3.Over-load use
4.Thermostat broken
1.Check grills for obstructions
2.Reduce the room temperature
3.Reduce the welding load
4.Change the thermostat(JUC-OF)
4.Over-current light
ON (warning led lights
green color)
1.IGBT broken
2.Output diode broken
3.Drive plate broken
4.Control plate broken
5.Over current welding
Contact R-Tech
5.Wire feeder not
working (welding
current not
adjustable)
1.The fuse broken
2.Potentiometer wiring faulty
or Potentiometer broken
3.The wire blocked
4.
The drive circuit broken
5.
other reasons
1.Change the fuse 5A/250V
(on left panel, open wire feeder case)
2.Connect the wires or Change it
3.Check the torch liner
4.
Change the control panel
5.
Contact R-Tech
6.Welding Voltage
not adjustable
1. Potentiometer wiring damaged
2. Potentiometer broken
3.The circuit broken
1.Check wiring
2.Change it
3.Change the control PCB
7.Welding stops, and
warning light is on
Self-protection has engaged
1.Display "801"
2.
Display "802"
3.
Display "804"
4.
Display "805"
1.
over-voltage, lower-voltage
2.
over-temperature
3.over-current
4.torch switch always closed / closed circuit
