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TROUBLESHOOTING & REPAIR |
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| Observe all Safety Guidelines detailed throughout this manual |
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| PROBLEMS |
| POSSIBLE AREAS OF | RECOMMENDED |
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| (SYMPTOMS) |
| MISADJUSTMENT(S) | COURSE OF ACTION |
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| OUTPUT PROBLEMS |
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Major physical or electrical damage | Contact your local Lincoln | Contact Lincoln Electric Service |
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is observed when cover | Authorized Field Service Facility. | Department | or |
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is removed. |
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The machine is dead - no output - | 1. The input power switch must be | 1. The power switch (S1) may be |
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no fan. |
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| in the ON position. | faulty. Check or replace. |
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| 2. | Make sure the input voltage is | 2. Check for loose or broken leads |
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| correct for the machine. | between the power switch (S1) |
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| and the input rectifier D9. See |
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| 3. | If the machine is set for single- | wiring diagram. |
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| phase operation, inspect to |
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| assure that the WHITE and | 3. Perform the Auxiliary |
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| BLACK leads are connected | Transformer Test. |
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| properly and the RED lead is not |
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| connected and is insulated. |
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| 4. Check that the input voltage set- |
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| up switch and jumper “A” (the |
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| reconnect auxiliary jumper) are in |
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| the proper position for the input |
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| voltage being applied. Refer to |
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| Input Voltage Reconnect |
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| Procedure in the Installation |
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| Chapter. |
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| 5. Check continuity of the |
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| slow blow fuse located on the |
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| reconnect panel. |
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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 the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed. Call