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TROUBLESHOOTING & REPAIR |
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TROUBLESHOOTING GUIDE |
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| 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 meter does not display V (volt) | 1. Check that either the advanced | 1. Check R1 | potentiometer | and | ||
or minimum current. |
| control board or jumper plug is in | associated | leads between | the | |
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| J3 on the control board. | control board and plug J9. See | |||
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| the Wiring Diagram. |
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NOTE: BEFORE REPLACING A |
| 2. The control board may be faulty. | ||||
CONTROL BOARD |
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If an Advanced Control Panel is |
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installed, remove it and replace |
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the Jumper in connector |
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the machine functions normally, |
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the Advanced Process panel or |
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harness is defective. |
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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
