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TROUBLESHOOTING AND REPAIR |
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Troubleshooting Guide – See Wiring Diagrams for location of specified |
| Observe Safety Guidelines | ||||||
components. See Wiring Diagrams for troubleshooting of specific circuits. |
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| detailed in the beginning of this manual. | |||||
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PROBLEMS | POSSIBLE AREAS OF |
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(SYMPTOMS) | MISADJUSTMENT(S) |
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| COURSE OF ACTION |
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| FUNCTION PROBLEMS (Continued) |
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The wire feed motor runs at a | 1. Make sure the mode switch |
| 1. Perform | the | Hall | Effect | ||
constant speed with no control. | (S3) is in the CV mode. |
| Module Test. |
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NOTE:Loss of tach feedback may | 2. Make sure the wire speed |
| 2. Perform the Wire Drive Motor | |||||
| result in MAX speed or a | control and the wire speed |
| Test. |
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| motor voltage of approx. | range switch (S2) | are set |
| 3. The control | board | may be | |
| 14VDC depending on the | correctly. |
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| faulty. Replace. |
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| Control Board being used. |
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The gas solenoid valve will not | 1. Make sure the |
| 1a.Perfor m the Solenoid PC | |||||
function. | equipped with a gas solenoid |
| Board and | Gas Solenoid | ||||
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| valve and properly connected. |
| Valve Test |
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| 2. Make sure the gas supply is |
| NOTE:Test is code specific. | ||||
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| adequate and the gas hoses |
| Codes above 10100 may | ||||
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| are not loose or kinked. |
| or may not have a | ||||
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| NOTE:Control Boards |
| Solenoid PC Board. | ||||
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| or higher do not use a Gas |
| 2. If a | ||||
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| Solenoid PC Board. |
| installed in the unit, disconnect | ||||
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| and plug in the timer jumper | |||
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| plug. If the gas solenoid | |||
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| functions, | then replace the | ||
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| 3. The contactor board or remote | |||
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| control board (if used) may be | |||
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| faulty. |
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| 4. The control board may be | |||
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| faulty. Replace. |
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The contactor does not function. | 1. Make certain the |
| 1. Perform the Contactor Test. | |||||
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| equipped with a contactor and |
| NOTE:Test | is | code | specific. | |
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| properly connected. |
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| Codes above 10100 may | ||||
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| 2. Check the connections to the |
| or may not have a | ||||
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| contactor PC board. |
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| Contactor PC Board. | |||
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| NOTE:Control Boards |
| 2. The Contactor PC board or the | ||||
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| or higher do not | use a |
| Control Board may be faulty. | |||
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| Contactor PC Board. |
| Replace. |
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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 the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed. Call
