TROUBLESHOOTING | ||
| Observe all Safety Guidelines detailed throughout this manual |
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PROBLEMS
(SYMPTOMS)
POSSIBLE
CAUSE
RECOMMENDED
COURSE OF ACTION
ʻErʼ is displayed on power up. | 1. | EEPROM error detected. |
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| 2. | Damaged control p.c. board. |
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ʻGLPʼ is displayed. | 1. | Ground Loop Protection fault |
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| occurred |
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| 2. | GLP reed switch failure. |
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| 3. | Damaged control p.c. board. |
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After pressing the trigger, wire | 1. | Power source work & electrode |
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feeds for a couple seconds, but |
| sense lead polarity switch or |
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stops. The voltage display reads |
| jumper is not correctly set. |
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less than 8.0 volts while the wire is |
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feeding. | 2. | Damaged wiring between the con- |
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| trol p.c. board and the work and |
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| electrode connections. |
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| 3. | Damaged control p.c. board |
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| If all recommended possible areas |
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| of misadjustment have been |
The knobs do not control the com- | 1. | Limits are set for wire feed speed | checked and the problem persists, |
plete range of wire feed speed or |
| or voltage. | Contact your local Lincoln |
voltage. | 2. | DIP switch S1 is incorrectly set for | Authorized Field Service Facility. |
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| the wrong wire drive or gear ratio. |
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| 3. | Improper power source selection |
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| on the control p.c. board. |
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Gas solenoid not operating properly | 1. Inlet gas pressure exceeding 80 |
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or intermittent. |
| psi(5.5 bar). Verify that gas pres- |
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| sure regulator is operating proper- |
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| ly. |
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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.
