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TROUBLESHOOTING & REPAIR |
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| Observe Safety Guidelines |
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| TROUBLESHOOTING GUIDE | |||
| 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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| FUNCTION PROBLEMS |
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| The machine often “noodle welds” | 1. The machine may be trying to | 1. Perform | the | Current | ||
| with a particular procedure. The | deliver too much power. When | Transducer Test. |
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| output is limited to approximately | the average output current |
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| 100 amps. |
| exceeds a maximum limit, the | 2. The control board may be faulty. | |||
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| machine will “phase back” to |
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| protect itself. Adjust the proce- |
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| dure or reduce the load to lower |
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| the current draw from the Power |
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| Wave machine. |
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Excessively long and erratic arc. | 1. Check for proper configuration 1. | Check the connections between |
| and implementation of voltage | the voltage sense receptacle |
| sensing circuits. | and the control board. See the |
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| Wiring Diagram. |
| 2. | The control board may be faulty. |
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, con- tact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call
