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TROUBLESHOOTING & REPAIR | ||||||||
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Observe Safety Guidelines 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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Fault Code |
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| Description |
| Possible Adjustment |
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Thermal LED Lit | 1. | The wire drive motor has over- | 1. | Remove any bends in the gun. | ||||
Motor overloaded, long term |
| heated. | 2. | Check to see if the wire moves | ||||
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(Err 81 on Digital Models) |
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| smoothly through the gun and | |||
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| cable. |
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| 3. | Check the tightness of the spin- | ||
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| dle brake. |
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| 4. | Wait for the motor to cool and | ||
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| the error to reset. |
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Thermal LED Lit | 1. | The wire drive motor is in a | 1. | Verify that the motor can move | ||||
Motor overloaded, short term |
| locked state causing the motor |
| freely when the pressure arm is | ||||
| to exceed it’s maximum amper- |
| released. |
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(Err 82 on Digital Models) |
| age draw. | 2. | Verify that the drive system is | ||||
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| free of dirt and debris. |
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| 3. | Perform the MOTOR OVER- | ||
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| LOAD TEST. |
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| OUTPUT PROBLEMS |
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The feeder does not power up - no | 1 | The work sense lead has an | 1. | Connect the work sense lead to | ||||
display (Digital Models) - no cold |
| open | or poor connection |
| the work in a location free of dirt | |||
feed. |
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| (across the arc model). |
| or paint. |
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NOTE: Both | LED’s should flash | 2. | The power source is off. | 2. | Turn on the power source. |
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briefly | when power is | 3. | The circuit breaker for the feed- | 3. | Reset the circuit breaker. |
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applied. |
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| er on the power source may |
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| have | tripped. (Control cable |
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| model). |
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The wire feeder powers up but | 1. | The contactor coil connections | 1. | Verify the connections. |
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there is no welder output when the |
| are loose. | 2. | Check for opens in the leads. | ||||
gun trigger is pulled. The shielding |
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2. | The contactor has failed. |
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gas flows and the drive rolls turn. | 3. | Perform the CONTACTOR | ||||||
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(Across the arc models) |
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| TEST, replace if necessary. |
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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