TROUBLESHOOTING | ||
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| Observe all Safety Guidelines detailed throughout this manual |
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PROBLEMS
(SYMPTOMS)
POSSIBLE
CAUSE
RECOMMENDED
COURSE OF ACTION
Displays & LEDʼs on keypad are | 1. The connectors from the control |
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off. The green and red LEDʼs on the |
| p.c. board to the display p.c. |
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control p.c. board are both blinking |
| board are loose or improperly |
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at about one second intervals. |
| inserted. |
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| 2. | Damaged display p.c. board. |
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| 3. | Damaged control p.c. board. |
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Displays & LEDʼs on keypad are | 1. Damaged control p.c. board. |
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off. The green or red LED on the |
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control p.c. board is blinking at a |
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very fast or erratic rate. |
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Dual procedure switch is not func- |
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tioning at the gun. | for using a dual procedure switch |
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| at the gun |
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| 2. | Disconnected or damaged wiring |
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| between the wire drive and con- |
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| trol box. |
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| 3. | Damaged wiring in the |
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| wire drive. |
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| 4. | Damaged wiring in the |
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| control box. |
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| 5. | Damaged control p.c. board. |
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| If all recommended possible areas | |
Wire feed speed is consistent and | 1. DIP switch S1 is incorrectly set | |||
of misadjustment have been | ||||
adjustable, but operates at the |
| for the wrong wire drive or gear | checked and the problem persists, | |
wrong speed. |
| ratio. | Contact your local Lincoln | |
| 2. | Damaged control p.c. board. | Authorized Field Service Facility. | |
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ʻErʼ is displayed on power up. | 1. EEPROM error detected. |
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| 2. | Damaged control p.c. board. |
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ʻGLPʼ is displayed. | 1. Ground Loop Protection fault |
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| occurred. |
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| 2. | GLP reed switch failure. |
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| 3. | Damaged control p.c. board. |
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The knobs do not control the com- | 1. Ranges are set for wire feed |
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plete range of wire feed speed, |
| speed, peak current, or back- |
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peak current, or background cur- |
| ground current. |
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rent. | 2. DIP switch is incorrectly set for |
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| the wrong wire drive or gear |
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| ratio. |
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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 your
