Maintenance and Troubleshooting
ProLine 2200 User’s Manual REV N
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5-11
Problem
Possible Cause
6. Damaged or loose torch lead connections.
7. Shorted torch or torch leads. Check the
continuity between the Electrode lead and the
Nozzle lead to make sure they are not shorted.
8. Open torch or torch leads. Check the
continuity from the Electrode lead to the torch
electrode and the Nozzle lead to the large brass
body of the torch.
No spark between the spark gap
electrodes
1. Improper spark gap. Set gap to .015” (.381
mm).
2. Worn spark gap electrodes. Clean electrodes
with 600 grit sandpaper and regap. Replace
electrodes that have a rounded face.
3. Bad high frequency transformer TR5. Check
for signs of arcing.
4. Check for 120VAC on the input side of filter
FL1 inside the RHF console after a start signal
has been given. If 120V is not present, check
associated wiring back to the power supply.
The arc will not transfer to the
workpiece
1. Loose work ground connection.
2. Pierce height too high.
3. Incorrect, damaged, or worn consumables.
Gas pressures will not adjust properly
1. Wrong consumables installed in torch.
2. Pressure regulator orifice clogged with dirt or
debris. Turn off primary power and turn
regulator adjustment knob fully clockwise.
Low pressure error
1. Supply gas pressure(s) less than 150 psi.
2. Faulty pressure switch or associated wiring
inside gas console.
