| TROUBLESHOOTING | |||
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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) | MISADJUSTMENTS | COURSE OF ACTION |
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OUTPUT PROBLEMS
Thermal light comes on | 1. | Thermal shut down. Dirt and dust | ||
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| may have clogged the cooling |
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| channels inside machine; air |
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| intake and exhaust louvers may |
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| be blocked.; welding application |
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| may exceed recommended duty |
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| cycle. Wait until machine cool |
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| down and thermal light goes out. |
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| Blow out machine with clean, dry |
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| low pressure air; check air intake |
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| and louvers; stay within recom- |
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| mended duty cycle. |
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| 2. | Bad thermostat or its connections |
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Meter doesn’t light up | 1. | Losing AC supply to Control PC | ||
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| board |
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| 2. | Loosing input to machine |
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| 3. | Faulty Control PC board |
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Has output in | No gas & no | 1. | Faulty trigger or hand/foot Amptrol | |
Stick mode |
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| or connections. | |
but no output |
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in Tig mode |
| 2. | Faulty Protection PC board or | |
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| bad connection to Control PC |
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| board |
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| 3. | Losing trigger supply to Control |
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| PC board |
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| Gas & | 1. | Faulty Control PC board |
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No output in both Stick and Tig | 1. | Bad connection at P4 of Control | ||
modes |
| PC board | ||
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| 2. | Faulty Control PC board |
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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.