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| TROUBLESHOOTING & REPAIR | |||
| COMMANDER 400 WITH | |||
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ERROR CODES DURING | DEFINITION / SYMPTOM | CORRECTIVE ACTION | ||
INITIALIZATION SEQUENCE | ||||
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LCH |
| The output current is too high | The machine may be “over | |
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| (greater than 750 amps for more | loaded.” Remove any external | |
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| than 1 second). | loads. If the problem persists | |
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| with no external load, check the | |
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| shunt leads and associated con- | |
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| nections to the control board. | |
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| See the Wiring Diagram. Perform | |
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| the SCR/Diode Rectifier Bridge | |
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| Test. | |
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| If the above procedures | |
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| do not reveal the problem, the | |
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| control board may be faulty. | |
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Err |
| XIRQ error (illegal external | If a High Frequency unit is being | |
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| interrupt request). | used, make sure it is connected | |
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| properly. There may be high | |
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| frequency intrusion from another | |
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| source in the immediate area. | |
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| Remove all possible forms of RF | |
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| intrusion. | |
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| If the problem persists, the | |
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| control board may be faulty. | |
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