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| TROUBLESHOOTING |
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| Observe all Safety Guidelines detailed throughout this manual |
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| Fault Codes |
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| Code | Description |
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| Corrective Action | ||||||
| 31 | Primary over current. | If condition persists |
| The machine needs to | ||||||
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| contact an authorized |
| be turned off and back | |||
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| Lincoln Field Service |
| on to reset the machine. | |||
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| Shop |
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| 32 | CAP bank A under voltage. | Check input power |
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| 33 | CAP bank B under voltage. | reconnect to make sure |
| condition ceases. | ||||||
| 34 | CAP bank A over voltage. | the machine |
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| 35 | CAP bank B over voltage. | is connected for the input |
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| 37 | Soft start Failed. | power being supplied. |
| Cycle power. | ||||||
| 39 | Glitch on the primary over | Check the machine |
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| current fault interrupt; possibly | ground. |
| condition ceases. | |||||
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| caused by noise or a signal level | If problem persists |
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| (misc. hardware fault #1) | contact an authorized |
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| Shop |
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| 43 | CAP delta; CAP A and B are out | Check input power |
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| of balance. | reconnect to make sure |
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| the machine is |
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| connected for the input |
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| power being supplied. |
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| 44 | Main CPU problem. The DSP | Check the machine |
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| has detected a problem with the | ground. |
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| CPU. |
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| 47 | Glitch on the CAP/heart beat | If problem persists |
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| interrupt; possibly caused by | contact an authorized |
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| noise or a signal level right at | Lincoln Field Service |
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| the trip threshold. | Shop |
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| (misc. hardware fault #2) |
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| 48 | The main contactor opened | If condition persist |
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| unexpectedly. (misc. hardware | contact an authorized |
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| fault #3) | Lincoln Field Service |
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| Shop |
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| "bad | The selected weld mode does | If condition persists |
| Press the Mode | ||||||
| node’ | not exist in the weld table that is | contact an authorized |
| Select button to | ||||||
| “####” | presently loaded in the machine. | Lincoln Field Service |
| select a different | ||||||
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| Shop |
| mode | |||
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CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.