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| TROUBLESHOOTING & REPAIR |
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| TROUBLESHOOTING GUIDE | Observe Safety Guidelines | |
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| detailed in the beginning of this manual. | |
| 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 Beeper (Piezoelectric Buzzer) | 1. | Background noise may be too | 1. | Perform the Piezoelectric |
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| cannot be heard – machine oper- |
| loud for user to hear beeper. |
| Buzzer Test. |
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| ating normally. |
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| 2. The display board may be |
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| faulty. Replace and perform |
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| voltage calibration. |
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| The welding parameters that were | 1. | Make certain that a remote | 1. | Check the continuity of wire |
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| saved in memory are different |
| control unit is NOT connected. |
| #445 (8J44 to 8J16). |
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| when recalled. |
| When a remote control unit is | 2. The power board may be |
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| used, the weld parameters are |
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| faulty. Replace. |
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| set by the remote control |
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| potentiometers. | 3. | The display board may be |
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| faulty. Replace. |
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| The water cooler does not turn | 1. | Make sure that the water cool- | 1. | Perform the Auxiliary |
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| on. |
| er has been installed and also |
| Transformer #2 Test. |
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| enabled. Refer to the Setup | 2. Check the continuity of leads |
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| Overlay description in the |
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| #453, 454, 455 & 456. From |
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| Operation Section of the |
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| plug J3 to J11. See wiring dia- |
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| manual. |
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| gram. |
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| 2. If the water cooler is enabled | 3. The display board may be |
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| but there is insufficient flow |
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| faulty. Replace. |
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| rate in the water cooler hose, |
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| the Power Wave will beep | 4. | The water cooler may be faulty. |
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| loudly, and the water cooler |
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| will shut down. Prime the |
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| water cooler. Refer to the |
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| Setup Overlay description in |
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| the Operation Section of this |
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| manual. |
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| 3. The coolers circuit breaker |
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| may have tripped. Reset if |
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| necessary |
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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, con- tact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call 1-
