Maintenance and Troubleshooting
ProLine 2200 User’s Manual REV N
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5-8
Troubleshooting Using the Control Panel Status LED’s
If the ProLine system develops a problem, first check the control panel status
LED’s. If one or more of the LED’s does not illuminate after the ON button is
depressed, use the status LED’s to pinpoint the problem.
•
RHF Door LED
- Extinguishes when the RHF door switch opens. Check the
RHF door, switch, and associated wiring.
•
Gas Console LED
- Extinguishes when the preflow outlet, plasma outlet, or
shield inlet pressures are low.
•
3 Phase Power LED
- Extinguishes when there is a problem with the three
phase power being supplied to the chopper assembly. Verify that the primary
wall disconnect fuses are good and check the main transformer, main
contactor and A.C. Detect p.c. board for proper operation. Also, this LED
should turn on immediately when the green “ON” button is pressed. If not,
check P28-3 to P28-4 for 10 VDC first. This should drop to 0 VDC when the
ON button is pushed. If not, then check CR1 and associated wiring.
•
Coolant Flow LED
- Extinguishes when there is a problem with the torch
coolant system. Check the coolant pump fuse F2 and verify that 230VAC is
present between TB3-13 and TB3-14. Also check for clogs in the coolant
leads and coolant filter/deionization cartridge.
•
Coolant Level LED
- Extinguishes when the coolant level in the tank has
dropped below the required minimum level. Add more coolant to clear the
error.
•
Coolant Temperature LED
- Extinguishes when the coolant temperature has
risen above the maximum operating temperature. Ensure that the heat
exchanger fan is running and that the heat exchanger is free from dust. Blow
out the heat exchanger and fan with clean, dry, oil-free compressed air. Leave
the unit running until the LED illuminates.