| TROUBLESHOOTING | ||
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| Observe all Safety Guidelines detailed throughout this manual | ||
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| PROBLEMS | POSSIBLE | RECOMMENDED |
| (SYMPTOMS) | CAUSE | COURSE OF ACTION |
FUNCTION PROBLEMS
| Engine goes to low idle but does not | 1. | Weld Control PCB or electronic |
| stay at low idle. |
| governor controller. |
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| No welding output or auxiliary out- | 1. | Broken lead in rotor circuit. |
| put. | 2. | Faulty field diode module. |
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| 3. | Faulty Weld Control PCB. |
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| 4. | Faulty rotor. |
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| Welder has some/ no output and no | 1. | Faulty remote kit. |
| control. Auxiliary output OK | 2. | Faulty output control potentiome- |
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| ter. |
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| 3. | Faulty output control wiring. |
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| 4. | Faulty Weld Control PCB or |
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| Chopper PCB. |
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| No welding output. Auxiliary output | 1. | WELDING TERMINALS switch in |
| OK. |
| wrong position, be sure switch is |
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| in WELDING TERMINALS |
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| ALWAYS ON position. |
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| 2. | Faulty Weld Control PCB or |
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| Chopper PCB. |
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| No auxiliary power. | 1. | GFCI Receptacle may have |
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| tripped. Follow “GFCI Receptacle |
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| Testing and Resetting Procedure” |
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| in the MAINTENANCE section of |
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| 2. | this manual. |
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| Open breakers may need to be | |
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| reset. |
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| 3. | Faulty receptacle. |
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| 4. | Faulty auxiliary circuit wiring. |
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If all recommended possible areas of misadjustment have been checked and the problem persists, Contact your local Lincoln Authorized Field Service Facility.
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.
VANTAGE 500 CUMMINS
