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| TROUBLESHOOTING |
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| Observe all Safety Guidelines detailed throughout this manual |
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| TROUBLESHOOTING GUIDE |
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| Observe Safety Guidelines |
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| detailed in the beginning of this manual. |
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| PROBLEMS |
| POSSIBLE | RECOMMENDED |
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| (SYMPTOMS) |
| CAUSE | COURSE OF ACTION |
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| BASIC MACHINE PROBLEMS |
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| Major physical or electrical damage | None | 1. | Contact your local authorized |
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| is evident when the sheet metal |
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| Lincoln Electric Field Service |
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| covers are removed. |
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| facility for technical assis- |
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| tance. |
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| Input fuses keep blowing | 1. Improperly sized input fuses. | 1. | Make sure fuses are properly |
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| sized. See installation section |
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| of this manual for recom- |
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| mended sizes. |
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| 2. | Improper Weld Procedure | 2. | Reduce output current, duty |
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| requiring output levels in |
| cycle, or both. |
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| excess of machine rating. |
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| 3. | Major physical or electrical | 3. | Contact your local authorized |
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| damage is evident when the |
| Lincoln Electric Field Service |
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| sheet metal covers are |
| facility for technical assis- |
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| removed. |
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| Machine will not power up (no | 1. | No Input Power. | 1. | Make sure input supply dis- |
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| lights) |
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| connect has been turned ON. |
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| Check input fuses. Make cer- |
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| tain that the Power Switch |
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| (SW1) on the power source is |
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| in the “ON” position. |
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| 2. Fuse F1 (in reconnect area) | 2. | Power Down and replace the |
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| may have blown. |
| fuse. |
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| 3. Circuit breaker CB1 (on the | 3. | Power Down and reset CB1. |
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| control panel) may have |
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| tripped. |
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4.Improper input voltage selec- 4. Power down, check input volt-
tion (multiple input voltage | age reconnect according to |
machines only). | diagram on reconnect cover. |
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, con- tact your local authorized Lincoln Electric Field Service Facility for technical assistance.
POWER WAVE® i400
