Return to Section TOC
Return to Section TOC
Return to Section TOC
Return to Section TOC
Return to Master TOC
Return to Master TOC
Return to Master TOC
Return to Master TOC
| THEORY OF OPERATION | ||||
| Observe Safety Guidelines detailed in the beginning of this manual. |
|
| ||
| PROBLEMS |
| POSSIBLE AREAS OF | RECOMMENDED |
|
|
|
| |||
| (SYMPTOMS) |
| MISADJUSTMENT(S) | COURSE OF ACTION |
|
| The machine has high welding |
| OUTPUT PROBLEMS | 1. Replace Potentiometer. |
|
|
|
| |||
| 1. | Potentiometer failure. |
| ||
| output and no control | 2. | Control Board failure. | 2. Replace Control Board. |
|
|
|
|
|
| |
| RED LED stays ON continuously 1. | Shunt Cable damaged. | 1. Check connection of white, |
| |
|
| 2. | Control Board defective. | red and black leads on the |
|
|
| Inverter Board |
| ||
|
|
|
| 2. Replace Shunt Cable |
|
|
|
|
| Assembly. |
|
|
|
|
| 3. Replace Conrol Board. |
|
| Flashing YELLOW LED | 1. Input Supply Voltage out of | 1. Supply correct Input Voltage. | ||
|
|
| tolerance. | 2. Check Control Board |
|
|
|
|
| conections. |
|
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