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| TROUBLESHOOTING & REPAIR |
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| Observe Safety Guidelines |
| TROUBLESHOOTING GUIDE |
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| detailed in the beginning of 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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| No auxiliary power at the recepta- | 1. The circuit breakers may be | 1. | Check the wiring between the |
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| cles. The welding output is normal | tripped. Reset if necessary. |
| auxiliary receptacles, the con- |
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| and the engine operates normally. | 2. Check for loose or faulty con- |
| nection studs, and the main sta- |
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| tor. See the Wiring Diagram. |
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| nections at the auxiliary recep- |
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| tacles. | 2. | Perform | the | Stator | Voltage |
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| Test. |
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| The machine has welding output | 1. If a remote control unit is con- | 1. | Check | the | OUTPUT | control |
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| but no control of output in some or | nected, check the remote control |
| potentiometer and | related |
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| all modes. The auxiliary power is | and related cable. |
| leads. See the Wiring Diagram. |
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| normal. | 2. Check the welding and work | 2. | Check the shunt and associated |
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| cables for loose or faulty con- |
| feedback leads. See the Wiring |
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| nections. |
| Diagram. |
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| 3. | Check the voltage feedback |
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| leads for loose or faulty connec- |
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| tions. See the Wiring Diagram. |
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| 4. | Perform | the | Power | Module |
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| Test. |
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| 5. | The Control Board may be |
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| faulty. |
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CAUTION
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call
