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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 voltage and or wire feed | 1. | Certain limits may have been | NONE |
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| speed will not adjust to user satis- |
| imposed on the welding para- |
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| faction. |
| meters. Refer to the Limits |
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| Overlay section of this manual. |
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| The voltage and or wire feed | 1. | When the Limits Overlay or the | 1. | Try the other wire feeder |
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| speed can be adjusted on the |
| Setup Overlay is installed in |
| receptacle. If the problem is |
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| wire feeder, but the changes are |
| the Power Wave, the machine |
| solved, the initial receptacle or |
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| not shown on the Power Wave |
| and wire feeder displays do |
| associated wiring is faulty. |
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| display. |
| not match. These overlays | 2. If the problem persists with |
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| cannot be used for welding. |
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| both wire feeder receptacles, |
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| 2. | If two wire feeders are con- |
| check or replace the wire feed- |
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| nected to the Power Wave, |
| er and control cable. |
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| only one of the feeder’s set- | 3. If the wire feeder and control |
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| tings can be displayed on the |
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| cable are OK, then perform the |
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| Power Wave at one tme. Pull |
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| Serial Loop Wiring Harness |
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| the trigger of the wire feeder |
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| Test. |
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| whose settings you want dis- |
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| played on the Power Wave. | 4. | The display board may be |
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| faulty. Replace and perform |
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| voltage calibration. |
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| 5. The control board may be |
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| faulty. Replace and perform |
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| voltage calibration and current |
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| calibration. |
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| The Dual Procedure overlay is | 1. | Check for proper installation of | 1. | Perform the Serial Loop |
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| installed, and the user cannot |
| the Dual Procedure overlay. |
| Wiring Harness Test. |
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| change from procedure “A” to | 2. Check the Dual Procedure Gun |
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| procedure “B” or vice versa. |
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| Trigger or separate dual proce- |
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| dure switch. |
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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-
