TROUBLESHOOTING | ||
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| Observe all Safety Guidelines detailed throughout this manual |
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PROBLEMS
(SYMPTOMS)
POSSIBLE
CAUSE
RECOMMENDED
COURSE OF ACTION
No welding power output. | 1. Poor work lead connection to |
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| work. Make sure work clamp is |
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| tightly connected to clean base |
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| metal. |
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| 2. | "Weld Terminals" switch in wrong |
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| position. Place switch in "Weld |
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| Terminals On" position when |
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| welding without control cable. |
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| 3. | Faulty PC board or welder alterna- |
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| tor. |
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Welder has output but no control. | 1. Poor remote/control cable connec- |
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| tion to |
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| Check connections. |
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| 2. | Faulty remote cable or faulty wire |
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| feeder or wire feeder cable. |
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| Replace if necessary. |
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| 3. | Faulty control potentiometer or PC |
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| board. |
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| If all recommended possible | areas | |
Wire feeder does not work when | 1. Wire Feeder Power circuit breaker | ||||||
of misadjustment have | been | ||||||
control cable is connected to 14 pin |
| open. Check 42V and 120V | checked and the problem persists, | ||||
connector. |
| beakers and reset if tripped. | Contact your local Lincoln | ||||
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| 2. | Faulty control cable. Repair or | Authorized Field Service Facility. | |||
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| replace cable. |
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| 3. | Faulty wire feeder. Replace wire |
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| feeder. |
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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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| Faulty connections to auxiliary |
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| receptacles. Check connections. |
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| 3. | Faulty PC board or welder alterna- |
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| tor. |
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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.
VANTAGE® 400
