R-Tech POWER MTS210D Operation Instructions Manual page 20

Step 3 Recommended course of action
This column provides a course of action for the possible cause, generally it states to contact R-Tech welding
for repair of machine.
Troubles
1.Fan not working
properly
2.No indication on
the front panel
3.Overheating light
on (warning led lights
red or yellow color)
4.Over-current light
ON (warning led lights
green color)
5.Wire feeder not
working (welding
current not adjustable)
6.Welding Voltage
not adjustable
7.Welding stops, and
warning light is on
Cause
1.fan wire lose
2.Fan breakage
1.Power cable loose
2.Fuse or IGBT broken
1.Poor airflow
2.Over-load use
3.Thermostat broken
1.IGBT broken
2.Output diode broken
3.Drive plate broken
4.Control PCB faulty
5.Over current welding
1.Fuse broken
2.Potentiometer faulty
3.Welding torch blocked
4.Drive circuit broken
1.Potentiometer faulty
2. PCB faulty
Self-protection has engaged
1.Display "801"
2.Display "802"
3.Display "804"
4.Display "805"
1.Connect the line
2.Change the fan
1.Check the power cable connections
2.Change the fuse 5A/250V fuse or contact
R-Tech.
1.Ensure vents are not blocked
2.Let machine cool and check duty cycle.
3.Change the thermostat
Contact the R-Tech on 01452 733933
1.Change the fuse 5A/250V
(on left panel, open wire feeder case)
2.Check / replace potentiometer
3.Check the welding torch
4.Change the control panel PCB
1. Check / replace potentiometer
2. Replace PCB
1. Over-voltage, lower-voltage
2. Over-temperature,
3. Over-current,
4. Torch switch always close
20
Remedy