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TROUBLESHOOTING & REPAIR | |||||||
Observe Safety Guidelines |
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| TROUBLESHOOTING GUIDE | ||
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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| OUTPUT PROBLEMS |
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Major physical or electrical dam- | 1. Contact your local authorized | 1. | Contact the Lincoln | Electric | |||
age is evident when the sheet |
| Lincoln Electric Field Service |
| Service Department, |
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metal cover(s) are removed. |
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| Facility for technical assistance. |
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Machine is dead – no output – no | 1. | Make sure that the input power | 1. | Check the input power switch | |||
fan – no status indicator lights. |
| switch is in the “ON” position. |
| for proper operation. |
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| 2. | Check the input voltage at the | 2. | Check the leads associated | ||
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| machine. | Input voltage must |
| with the power switch for loose | |
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| match the rating plate. |
| or faulty connections. | See the | |
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| 3. Check for | blown or missing |
| Wiring Diagram. |
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| fuses in the input lines and the | 3. | Check all connectors and wires | ||
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| 1A slow blow fuse on the input |
| for loose or faulty connections. | ||
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| board. |
| 4. | Perform the Input | Voltage |
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| Board Test. |
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Machine is malfunctioning - no | 1. | Check the input voltage at the | 1. | Check all connectors and wires | |||
output - no status indicator lights - |
| machine. | Input voltage must |
| for loose or faulty connections. | ||
fans run. |
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| match the rating plate. |
| See Wiring Diagram. |
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| 2. | Perform the Input | Voltage |
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| Board Test. |
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| 3. | The control board may be | |
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| faulty. Replace. |
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CAUTION
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, con- tact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call