Hypertherm HPR260 Manual Gas Preventive Maintenance Program Rev.5 - Manual (Page 193)

MAINTENANCE
HPR260 Auto Gas Instruction Manual 5-49
Troubleshooting high-current error codes 103 and 104
1. Verify that the current sensors (CS1 and CS2) and cables are not damaged.
2. Exchange CS1 and CS2. Replace the faulty sensor if the error code is not displayed again.
3. Look at the surge capacitor to ensure that it is not short-circuited. Replace PCB6 if the surge capacitor is shorted.
4. Check for short circuits from the work terminal to the negative terminal on PCB6. Resistance should be about 100K
ohm from the work terminal to the negative terminal. Resistance will vary if you have a voltage divider for a height
control system.
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