TROUBLESHOOTING | ||
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| Observe all Safety Guidelines detailed throughout this manual |
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MACHINE TROUBLESHOOTING GUIDE
Not all trouble conditions can be recognized by the PC board, and displayed as error codes. The following guide covers most other trouble conditions.
PROBLEMS | POSSIBLE | RECOMMENDED |
(SYMPTOMS) | CAUSE | COURSE OF ACTION |
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| PROBLEMS |
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Machine has no output. | 1. Secondary contactor circuit (2 |
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| and 4 wire feeder receptacle) not |
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2.Electrode or work lead loose or broken.
3.Defective PC Board.
4.Protective circuits operating due to output short circuit.
5.If using an
6.If welding with 1/16" aluminum
wire and machine is flashing E00. If all recommended possible areas
of misadjustment have been checked and the problem persists,
Contact your local Lincoln
Authorized Field Service Facility.
Machine has minimum output and no 1. Voltage Control misconnected. control.
Machine has low output and no con- 1. Open in feedback circuitry. trol.
2.Faulty PC Board.
3.Voltage Adjust potentiometer circuit open (lead 75).
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.