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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. | |||
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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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Airflow does not shut off. | 1. Remove input power to the | 1. Remove leads #38 and | ||||
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| #31 (plug J12) from air | ||||
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| tinues to flow the air solenoid | solenoid (SV1). | Refer to | ||
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| (SV1) could be jammed or | wiring diagram. |
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| stuck open. | a. If air continues to flow | |||
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| 2. If air pressure is above | the solenoid is faulty. |
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| Replace. |
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| 125 PSI solenoid may be | b. If the airflow stops when | |||
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| damaged. Set for | the | solenoid (SV1) leads | ||
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| are | removed | then | the |
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| Control Board | could | be | |
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| faulty. |
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The "OUTPUT ON" and "AIR | Turn power off - then restart | 1. The Control Board could | ||||
PRESSURE" LED's | blink in | machine | be faulty. Replace. |
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alternating order. |
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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